they use by figuaring out the area around the building or place they are making.
Chat with our AI personalities
Divide the circumference by (2 x pi) to get the radius. Then use the formula for the area of the circle.
To find the area of a circle knowing only the circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Square the circumference, then divide it by 4π to get the area.
if it is the radius you can find area or circumference
The area of a circle with radius r is pi*r*r and its circumference is 2*pi*r Use the first to find r and then use that value of r in the second to find the circumference.
this concept is used by engineers. as they have to design buildings.