Question

How do i find the circumference and area of a circle

Answer 1

C = $\pi d$
a = $\pi r^{2}$
r = radius and d = diameter.

Answer 2

Answer:

C = πd

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.