What is the?

Question

the area of a circle. so hard!!

Answer 1

3.1415 times the radius squared. very easy. example radius 5feet squared 25 square feet. 25 times 3.1415= 78.5375 square feet.

Answer 2

PI * Radius^2

Answer 3

area=3.14*r*r metres

r is the radius of the sphere(in metres)

Answer 4

The area of a circle can be found by multiplying pi ( π = 3.14) by the square of the radius

If a circle has a radius of 4, its area is 3.14*4*4=50.24

If you know the diameter, the radius is 1/2 as large.