The area of an extra large circular pizza from Gambino's Pizzeria is 484π cm, squared. What is the diameter of an extra large pizza from Gambino's Pizzeria?

Answer 1

Hi Hayden,

The formula for calculating the area of a circle is:

A = ¶ • r²

^{In this problem, we w that the area is 484 ¶, so we can substitute this value for A and solve the equation for the radius first:}

A = ¶ • r²

484 ¶ = ¶ • r²

^{Divide both sides by pi:}

484 = r²

The radius will be equal to the square root of 484 which is 22 cm.

Since the diameter is 2 times the radius for any circle, the diameter will be:

2 • 22 = 44 cm