area of a circle = pi*r^2
with pi being 3.1415926535..... that is the ratio between the diameter of the circle and it's circumference.
r stands for radius (half the diameter if you didn't know)
so for this circle to find the area all you have to do is 12 (half of 24 the diameter to find the radius) , then square it (144) then times it by pi which equals approximately 452.39 meters^2
A circle with a radius of 10 meters has an area of 314 square meters.
A circle with a radius of 10 meters has an area of 314 square meters.
The area is 314 cm2
The circumference is 62.815 units.
Circumference = 314 inches implies radius = 49.97 inches and so area = 7846.02 sq inches (approx).
100pi, or approximately 314.
3.14*r*r=area 3.14*100=314 or 100pi
Area of circle using 3.14 for pi: 3.14*10^2 = 314 square inches
The diameter of a circle whose circumference is 314 is about 1 (99.95).
314 feet²Area of a circle = pi x radius²let pi = 3.14A = 3.14 x 10²A = 3.14 x 100A = 314 feet²
It is: the square root of (314/pi) = 9.997 units to 3 dp
A= pi r squared 3.14 * 10 *10 = 314 square feet.
you divide by pi (3.14) then take the square root, then multiply by 2 and multiply by pi (3.14)...in that order i.e. if you have a circle with area of 314 square inches, you take the 314 and divide by 3.14...you get 100...then you take the square root of 100...you get 10...then you multiply by 2...you get 20...then you multply by 3.14...you get 62.8 inches...thats the circumference of a circle with an area of 314 square inches
The diameter of the circle works out as 20 units to the nearest whole number
Knowing that the area of a circle is its radius squared times Pi, the area of a 10 ft radius circle is 100*Pi square ft, or about 314 square feet.
Diameter = 314/pi feet
There seems to be a typo in the problem you have...they are asking you to us 3.14 as pie or the symbol with 2 lines and a wavy line on top
That is the formula for calculating the area of a circle with a 10 unit radius. The answer is 314 sq units.
A circle is Pi*Radius^2So if you measure the diameter of a circle, for example it is 20. Then it is 3.14*10^2 or 314 square units.Pi*r^2
I'm assuming you mean the following:--------|OOO||OOO||OOO|--------Where:Each circle touches, but does not overlap, each adjacent circleThere is no gap between the edge of the circles and the edge of the squareThe area of each circle is 314 units2Let r be the radius of a circleThe area of a circle is pi x r2r = square root of (314 / pi)r = approx*. 10 unitsThe length of each side of the square = 6 x r = approx*. 60 units* approximate, because the value of pi is not exactly 3.14
314 is from St. Louis, Missouri.
Using pi as 3.14 it works out that the diameter is 20 cm
Tells you the answer is 2*sqrt(314*pi) inches, which is approximately 62.82 inches Seriously though. Use metric units in maths it makes everything just work!
Area of circle is pi r^2, in this case approx 314 sq cm (3.14 x 10 x 10). For your semi-circle, half of this ie 157 sq cm
10 pi or 314.someting something 10 pi or 314.someting something 10 pi or 314.someting something