# What is the area of 7cm by 4cm?

# What is the surface area of a cylinder with a radius of 7cm and a height of 25cm?

The formula in getting the surface area of a cylinder is 2 pi r 2 + 2 pi r h SAC = (2)(3.14)(7) 2 + (2)(3.14)(7)(25) = (2)(3.14)(49) + (2)(3.14)(7)(25) = (6.28)(49) + (6.28)(175) = 307.72 + 1099 SAC = 1406.72 cm 3

# What is the area of a nonagon with the side of 4cm?

The area of a nonagon with side L is 6.18182 x L squared. If L = 4, L squared = 16, so area is 98.91 square cm. Now I didn't know the formula, I got it from Wikipedia, so you could do that too.

# 2 regular pentagons have radii of 5cm and 7cm What is the ratio of their areas?

Given the radius R (distance from the center to a vertex), the area of a regular pentagon is given by: .
R 2 5sin(2pi/5) ---------------- 2 .
So, since the rest of the formula is a constant, to determine the ratio, you just need the ratio of: .
5 2 : 7 2 = 25 : 49, or 1 : 1.96 , or …(backwards) 0.51 : 1 . ( Full Answer )

# How do you find the area of a regular decagon with the side 4cm?

Many would use an online calculator for this. The equation is A=S^2N. The total would be 179.14cm. Calculators help a lot for finding tough questions like those.

# In a cylinder height is 7cm and area is 659.73cm2 what is diameter?

If a cylinder's height is 7cm and its area is 659.73cm 2 ,its diameter will be approximately 14.66cm

# The width of a rectangle is X plus 4Cm its length is X plus 7Cm greater than its width represent its perimeter and simplify?

width = (x + 4) cm length = [(x + 4) + (x + 7)] cm Rectangle Perimeter = 2[(x + 4) + (x + 4 + x + 7)] cm Rectangle Perimeter = 2[(x + x + x) + (4 + 4 + 7)] cm Rectangle Perimeter = 2(3x + 15) cm Rectangle Perimeter = (6x + 30) cm

# What is the area of a circle if the radius is 4cm?

A circle with a radius of 4 cm has an area of 50.27 square cm..

# Area confided by a square of side 4cm?

Area = Length x Width Area = 4 x 4 4 x 4 = 16 Area = 16 cm 2

# Find the height of a triangle with area of 42 square centimeters and a base of 7cm?

A = 1/2 B H H = 2A / B = (2 x 42) / 7 = 84/7 = 12 cm

# What is the surface area of a cube if the sides are 4cm?

4 cm means each face is 16 cm 2 . A cube hase 6 faces so total surface area = 6*16 = 96 cm 2

# What is the area of a triangle with 11cm 8cm 7cm?

A triangle with side a: 11, side b: 8, and side c: 7 cm has an area of 27.93cm 2

# If a triangle has 7cm and 16cm what is the area?

56 cm 2 * * * * * Only if these are the shorter legs of a right angled triangle and there is no justification for making that assumption. Two sides of a triangle are not sufficient to determine its area.

# A circle has a diameter of 7cm what is it's area and circumstance?

The area of a circle is pi*r 2 and its circumference is 2*pi*r where r is the radius = half the diameter. So r = 3.5 cm. Then area = 38.48 square cm and circumference = 21.99 cm As to the circumstance of the circle, that is rather a personal question!

# What is the triangles area if the sides are 7cm 7cm and 5cm?

A triangle with side a: 7, side b: 7, and side c: 5 cm has an area of 16.35 square cm..

# What is the area of 2cm 2cm 4cm 6cm 2cm 2cm 4cm?

It is impossible to answer this question because the question could refer to an object in 7-dimensional hyperspace or it could be an irregular heptagon (or other possible shapes in 3, 4 5 or 6 dimensions). In anything but 7-d space, its exact shape is indeterminate and so the area cannot be calculat…ed. To understand the indeterminacy, a 2cm + 2cm + 2cm + 2cm shape could be a rhombus or a square, and these will have different areas. Without the angles, there is no way of knowing which. ( Full Answer )

# Find the area and perimeter of the square with side of 4cm?

Area = (side) 2 = 16 square centimeters Perimeter = 4 x side = 16 centimeters

# Area of triangle 12Cm 7Cm 10Cm?

90 centimeters * * * * * That is so wrong! Let the three sides be a, b and c and let s = (a+b+c)/2 then area = sqrt[s*(s-a)*(s-b)*(s-c)] So here s = 14.5 cm and so area = sqrt(14.5*2.5*7.5*4.5) = sqrt(1223.4375) = 34.98 sq cm (to 2 dp)

# What is the area of a circle with a radius of 4cm?

50.24... the formula to calculate the area of a circle - is Pi x radius x radius Therefore 3.14 x 4 x 4 = 50.24

# Area of a rectangle 7cm by 11cm?

77cm. That should've been quite obvious.... all you do is multiply 7 by 11 and BAM, you have 77!

# What is the surface area of a cylinder with a height of 7cm and a diameter of 6 cm?

A cylinder with a height of 7cm and a diameter of 6cm has a surfacearea of 188.5cm 2

# What is the area of a triangle with 5cm and 7cm?

1/2*5*7 = 17.5 square cm * * * * * Only if these are the shorter legs of a right angled triangle and there is no justification for making that assumption. Two sides of a triangle are not sufficient to determine its area.

# What is the length of the slanted side of a right angle trapezoid whose parallels are 4cm and 7cm respectively with a height of 4cm?

The slanted side is a right angle triangle with height of 4 cm and a base of 3 cm because of the parallels 7-4 = 3 Using Pythagoras: 3 2 +4 2 = 25 and the square root of this is 5 So the length of the slanted side is 5 cm Note that in some countries a trapezoid is known as a trapezium.

# What is a reasonable estimate for the area of a circle with radius 4cm?

area of a circle is pi x radius^2 so... pi x 4^2 = about 50 cm

# What is the area of a cone with a slant height of 22 cm and radius of 7cm?

A cone with a slant height of 22cm and radius of 7cm has a totalsurface area of about 637.74cm 2

# How do you work out the interior angles and area of a triangle that has sides of 2cm 3cm and 4cm?

Use the cosine rule ref: http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/furthertrigonometryhirev2.shtml Improved Answers:- Sketch a triangle and label the vertices A, B and C then label the opposite sides a, b, and c respectively with the given dimensions. Use: cos A = (b 2 +c 2 -a 2… )/(2*b*c) then rearrange the formula to find the other angles or use the sine rule. For the area use: 1/2*b*c*sin A A = 104.4775122 degees B = 46.56746344 degrees C = 28.95502437 degrees Area = 2.904737751 square cm Usually the above figures are rounded off to about 3 decimal places ( Full Answer )

# What is area of prism 5cm 4cm 3cm?

It depends on the prism. Is it a triangular prism, a rectangular prism, a pentagonal prism... etc..

# What is the area of a triangle if the base is 4cm and the height is 6 cm?

Area of a triangle = (1/2) x (base) x (height) Can you handle it from there ?

# What is the area of a triangle with a length of 4cm and a height of 10cm?

The area of any triangle is (1/2) x (length of the base) x (height). We're sure you can take it from there.

# What is the area of a rhombus whose height is 7cm and whose parallel sides are 15cm and 17cm?

A rhombus is a quadrilateral whose four sides all have the same length. I think you are describing a trapezoid - a figure with only one set of parallel sides. The formula for finding the area of a trapezoid is: A = (s 1 + s 2 ) / 2 x h where s 1 and s 2 are the parallel sides and h is the… height. Basically this is our old "base times height" formula, but since our bases (the parallel sides) are not equal, we add them together and divide by 2 to get the average that we multiply times the height. For your trapezoid the equation looks like this: A = (15 + 17) x 7 /2 A = 32 x 7 /2 A = 112 cm 2 ( Full Answer )

# How do you calculate the area of a cube if one side is 4cm?

There are a couple of things about a cube that you have to know first, from your general knowledge. -- Each flat side of a cube is a square. -- There are six of them. If each side of the square is 4 cm long, then the area of each square is (4 x 4) = 16 cm 2 . Since there are six of them… on the cube, the total area of the cube is (6 x 16) = 96 cm 2 . ( Full Answer )

# What one has a greater area 6cm or 5cm and 7cm?

Information provided in the question is not enough to answer. We can only say that for the given lengths: 7cm > 6cm > 5cm

# What is area of rhombus if four sides are 7cm?

There is not suficient information. A measure of the vertical height is required - either implicit or explicit. If you think of a rhombus as 4 sticks of 7 cm hinged at the vertices, you can change the shape to a square (area = 49 sq cm) or squash it right down so that the area gets as close to 0 as… you wish. ( Full Answer )

# What is the area of 2cm by 4cm?

what is areas shapes 2cm 2.2cm 4cm what is answer if i need help for my homework cuz i dint know how to do this areas

# What is the area of a rectangle that is 4cm long and 3cm wide?

the equation for area is area = length * width. area = 3cm*4cm. Area = 12cm^2

# What is 7cm x 4cm x 3cm equal?

7 cm * 4 cm * 3 cm = 7 * 4 * 3 * cm * cm * cm = 84 cm 3

# What is the area of a circle that has the radius of 4cm?

A circle with a radius of 4 cm has an area of 50.27 square cm..

# How do you find an area of 4cm 10cm 10cm 8cm 7.5cm?

There are 5 linear measures given. If that implies that the shape is a pentagon, there is no way to answer the question with out additional information about the angles in the pentagon. A triangle is the only polygonal shape whose area is uniquely determined by the length of its sides.

# What is the area of a circle with radius of 4cm?

A circle with a radius of 4 cm has an area of 50.27 square cm..

# What is the area of an iscosceles triangle that has a base of 5cm and a height of 7cm?

The area of a triangle = 1/2*base*height = 1/2*5*7 = 17.5 cm 2 ..
The fact that it is an isosceles triangle is irrelevant..

# What is the area of 4cm 9cm 7cm 5cm?

Since there are 4 lengths given, the shape could be a quadrilateral. Unfortunately, the lengths of the sides is not enough information to determine the shape of a quadrilateral. As an illustration, consider a square of sides 10 cm. Its area is 100 cm 2 . But it can be "distorted" into a rhombus with… the same sides but the area can be reduced to as close to 0 as you like. Four linear measures could also mean that it is a 4-dimensional cuboid in hyperspace or some other shape in 2 or 3 dimensions. But since these shapes cannot be determined, it is not possible to find an answer to the question. ( Full Answer )

# What is the area of the figure with 25cm 7cm 14cm 12cm 12cm?

Since there are five numbers given it is assumed that the figure in question is a pentagon. Unfortunately, a triangle is the only polygonal shape that is rigid. A pentagon, with all five sides of known lengths is not rigid - it can be flexed in the same way that a square can be flexed into a rhombu…s. The area of a rhombus can take any value from 0 up to the value of the square: the exact value is indeterminate. Similarly for a pentagon. ( Full Answer )

# What is the perimeter of a square if it has an area of 4cm square?

Since all four sides are equal in a square, a square with an area of 4cm 2 must be 2cm on each side. Therefore, the perimeter is 2cm x 4 = 8cm.

# What is the fraction of the width of a rectangle if the width is 4cm and the length is 7cm?

It depends on whether you want the width as a fraction of the length or perimeter or something else - like the diagonal.

# What is the area of a triangle if the base is 12Cm and height 7Cm?

The area of a triangle = (base * height) / 2. So here, the area = 12 * 7 / 2 = 84/2 = 42 cm 2 .

# What is the area of a trapezoid with base of 4Cm and 28Cm?

The height of the trapezoid is also needed to find its area which is as follows:- Area of a trapezoid = 0.5*(sum of bases or parallel sides)*height

# What is the area of an equilateral triangle inscribed in a circle of radius 4cm?

Two vertices of the triangle and the centre of the circle make a smaller equilateral triangle with legs of 4 cm and the included angle is 360/3 = 120 degrees..
Therefore the area of each of these sub-triangles = 1/2*ab*sin(C) = 1/2*4*4*sin(120) = 1/2*4*4*1/2 = 4 cm 2 ..
And so the area of the insc…ribed triangle is 12 cm 2 ..
Two vertices of the triangle and the centre of the circle make a smaller equilateral triangle with legs of 4 cm and the included angle is 360/3 = 120 degrees..
Therefore the area of each of these sub-triangles = 1/2*ab*sin(C) = 1/2*4*4*sin(120) = 1/2*4*4*1/2 = 4 cm 2 ..
And so the area of the inscribed triangle is 12 cm 2 ..
Two vertices of the triangle and the centre of the circle make a smaller equilateral triangle with legs of 4 cm and the included angle is 360/3 = 120 degrees..
Therefore the area of each of these sub-triangles = 1/2*ab*sin(C) = 1/2*4*4*sin(120) = 1/2*4*4*1/2 = 4 cm 2 ..
And so the area of the inscribed triangle is 12 cm 2 ..
Two vertices of the triangle and the centre of the circle make a smaller equilateral triangle with legs of 4 cm and the included angle is 360/3 = 120 degrees..
Therefore the area of each of these sub-triangles = 1/2*ab*sin(C) = 1/2*4*4*sin(120) = 1/2*4*4*1/2 = 4 cm 2 ..
And so the area of the inscribed triangle is 12 cm 2 .. ( Full Answer )

# What is the area of a regular pentagon with a side length of 4cm?

27.53 cm 2 approx. 27.53 cm 2 approx. 27.53 cm 2 approx. 27.53 cm 2 approx.

# What is the area of a right triangle that is 4cm by 8cm?

The area of a right-angle triangle is half of the area of a rectangle 8cm x 4cm. Find the rectangle area and divide by half to find the area of the right-angle triangle. Therefore: 8 x 4 / 2 = 16cm 2 * * * * * The above answer assumes that the two given lengths are the shorter legs of the… triangle. It is, however, possible that these are the hypotenuse and one leg. In that case, the second leg is 4*sqrt(2) cm and the area of the triangle is 4 * 4*sqrt(2) / 2 = 8*sqrt(2) = 11.31 cm 2 . ( Full Answer )

# What is the external area of a rectangular box of length 6cm breadth 4cm and height 4cm?

Assuming external area is the surface area. 2 x 6 x 4 = 48 sq cm (top and bottom area) 2 x 6 x 4 = 48 sq cm (two sides) 2 x 4 x 4 = 16 sq cm (two ends) 48 + 48 + 16 = 112 square centimetres is the total surface area.

# What is the area of 9 cm and 4cm?

The answer depends on the shape - whether the two given lengths are sides of a rectangle, the axes of an ellipse or measures for some other shape.