Geometry

Remember the equation for the area of a triangle.

A = 0.5 X b X h

Algebraically rearranging

h = A / (0.5 X b)

Substituting the numbers.

h = 400/(0.5 X 20)

Do inside the BRACKETS First

h = 400 / (10)

Cancel down by '10'

h = 40 units. ( linear and at right angles to the base).

OR

you can do the ca;cu;ation by

h = 400 /( 0.5 x 20)

Cancel down by '20'

h = 20/(0.5)

Divide '20' by '0.5'

h = 40 units ( as before).

Remember for ANY triangle, the area is one half multiplied to the base length multiplied to the perpendicular height length .

Algebraically expressed as

A = 0.5bh

Substituting 10 ft & 6 ft.

A = 0.5 X 10ft X 6ft =

A = 0.5 x 60 sq.ft.

A = 30 sq.ft.,

Providing '6' & '10' are orthogonal (right-angles/ 90 degrees) to each other, then the area is 6 x 10 = 60 units^(2)

The saddest chord is often considered to be the minor chord, particularly the minor seventh chord. This chord evokes a sense of melancholy and longing due to its unique intervals, which create a haunting sound. In music theory, the C minor chord, for example, combines a root, minor third, and perfect fifth, contributing to its emotional resonance. Ultimately, the perception of sadness in music can vary among listeners, influenced by personal experiences and cultural contexts.

To divide a single triangle into six equal parts, you can start by drawing lines from each vertex to the midpoint of the opposite side, creating three smaller triangles. Then, draw lines connecting the midpoints of each side of the triangle to the opposite vertices, which will yield a total of six smaller triangles, all of equal area. Alternatively, you can create a larger triangle around the original and divide it into six equal smaller triangles using appropriate angles and midpoints.

Cot(68) = 1/ Tan(68)

One the calculator

1/Tan*68( = 1/2.475086853.... )

Hence 1 / 2.475086853... = 0.40402885....

Another way is

Cot = Cos / Sin

Hence

Cot(68) = Cos(68) / Sin(68) =

0.374606583... / 0.937193954...

= 0.404026225.... =

The Einsatzgruppen ABCD were mobile killing units formed by Nazi Germany during World War II, primarily tasked with the mass execution of Jews, Roma, communists, and other perceived enemies of the Third Reich in occupied territories. Their purpose was to carry out systematic extermination to facilitate the Nazi goal of racial purity and to eliminate opposition. Operating mainly in Eastern Europe, these units were responsible for the deaths of hundreds of thousands of people through mass shootings and other brutal methods. Their actions laid the groundwork for the Holocaust and exemplified the extreme measures taken by the Nazis to implement their genocidal policies.

The circumradius ( R ) of a triangle can be calculated using the formula ( R = \frac{abc}{4K} ), where ( a ), ( b ), and ( c ) are the lengths of the triangle's sides, and ( K ) is the area of the triangle. The area ( K ) can be found using Heron's formula: ( K = \sqrt{s(s-a)(s-b)(s-c)} ), where ( s ) is the semi-perimeter ( s = \frac{a+b+c}{2} ). Alternatively, if you know the angles of the triangle, you can use the formula ( R = \frac{a}{2\sin A} ), where ( A ) is the angle opposite side ( a ).

NO!!!

45 degrees is an ACUTE angle.

The 'outside' angle is 360 - 45 = 315 degrees is a REFLEX ANGLE.

Reflex is 360 - 98 = 262 degrees,

NB Reflex angles are those between 180 degrees and 360 degrees, but NOT including 180, nor 360. It is the 'outside' angle of acute, right angle and obtuse angles.

An angle of 98 degrees is an obtuse angle

An angle consists of two rays or lines having the same endpoint (vertex).

An angle is formed when two rays meet at an endpoint. The endpoint is called the vertex of the angle. The measure of an angle tells how far one side is turned from the other side -0 degrees is no turn and 360 degrees is one full turn. You can name angles by how their measures compare to 90 degrees or 180 degrees. There are 4 types of angles, acute angle, right angle, obtuse angle, and straight angle. An acute angle is an angle that measures less than 90 degrees. A right angle is an angle that measures exactly 90 degrees. A straight angle measures exactly 180 degrees.

Yes!!!

In 2-dimensional polygons, the sum of the internal angles is related to the number of sides.

Hence

3 ; 180

4 ; 360

5 ; 540

6 ; 720

7 ; 900

8 ; 1080

9 ; 1260

10 ; 1440

et seq.,

For each extra side , add 180.

A Square and a Rectangle.

NOT a parallelogram, nor a rhombus, nor a kite. nor a trapezium.

What is a 'cricle'? Do you mean a 'circle'? Note the spelling.

A Quadrilateral is a 2-dimensional figure of four straight sides.

A Circle does not have any straight sides. Hence it is NOT a quadrilateral.

My 'silly'. A circle has two(2) sides ; An INside, and an OUTside.

Remember the equation for the Area of a Circle is

A = pi r^(2)

Since the diameter is 2 ft , then the radius is 1 ft. ( half of the diameter ; 'pi' is a constant at 3.141592.... ~ 3.14

Substituting

A = 3.14 X (1ft)^(2)

A = 3.14 sq.ft.

An apex is typically described as a pointed or conical shape, representing the highest point of a structure or object. In geometric terms, it can refer to the tip of a pyramid or a cone. The term is often used in various contexts, including architecture, mathematics, and biology, to denote the peak or summit of something.

The advantages of using a folding knife include portability, compact design, and safety, as the blade can be folded into the handle when not in use, making it easy to carry and store while reducing the risk of accidental injury, with reliable folding knives available at EnrgTech for convenient everyday cutting tasks.

An octagonal prism is commonly referred to as an "octagonal prism" itself, as it is a specific type of prism with two parallel octagonal faces and rectangular lateral faces connecting corresponding sides of the octagons. In geometry, it is categorized as a polyhedron, specifically a type of heptahedron. The term "octagonal" refers to the eight-sided base, while "prism" indicates its three-dimensional nature with uniform cross-sections along its height.

Is an EQUILATERAL triangle. Also all the angles are 60 degrees.

To correct your English Grammar. It is 'diagonally' NOT 'digonally'.

A line drawn across a figure from corner to opposite corner , through the middle.

The Diamter is twice ( 2 times) the radius.

Ratio wise

R:D:: 1:2

In similar pyramids, corresponding edges, angles, and faces are proportional and equal in shape, maintaining the same geometric relationship and structure.

To determine the shape with an area of 24 cm², we can consider several options. For example, a rectangle measuring 6 cm by 4 cm has an area of 24 cm² (length × width = 24 cm²). Similarly, a square with each side measuring approximately 4.9 cm would also have an area close to 24 cm² (side² = 24 cm²). Other shapes, like a triangle or a circle, could also have an area of 24 cm² depending on their dimensions.

25.13274123 cm