Question

Your friend pulls out a huge home-baked pizza from the oven and tells you the area of the pizza is A=625pi cm squared. What is the diameter, d, of this pizza?

Answer 1

It is given that the area of the pizza is

$A = 625 \pi$

And pizza is of circular shape. And the formula of area of circle is

$Area = \pi r^2$

Using the given value of area, we will get

$625 \pi = \pi r^2 \\ 625 = r^2$

Taking square root on both sides,

$\sqrt{625} = r \\ r = 25cm$

And diameter is double of radius. THerefore diameter is 50 cm .

Answer 2

198.9436789 is the diameter hope this helps!