How do you find the circumference of a pizza 14 inches?

Answer 1

Cirumference=2*pi*r where pi=3.14159. keep in mind that pi is only a number, not a symbol. so you solve for r:

14=2(3.14159)r

14=6.2832r

2.228in=radius

now that you have the radius, you can find the area, because area=pi*r2 or r*r

A=3.14159*(2.228in)2

A=3.14159*(4.965in2)

A=15.597 in2