Math area, radius and pie

Question

pizza box side lengths 18 inches. circular pizza with radius of 8 inches. what is the difference between the area of the box and the pizza. Use 3.14 and round to the nearest hundredth

Answer 1

square box with sides 18 inches, pizza inside with radius = 8 inches

difference between the area of the box and the area of the pizza

is 18^^2 - (8^2)pi

= about 324 - 64(3.141593)

= about 122.9 square inches

air space between the box and the pizza