Question

A 12-inch diameter pizza has 22 calories per square inch.

Answer 1

Answer:

$2,486.88\ calories$

Step-by-step explanation:

step 1

Find the area of the pizza

The area of a circle is equal to

$A=\pi r^{2}$

we have

$r=12/2=6\ in$

substitute

$A=(3.14)(6^{2})=113.04\ in^{2}$

step 2

we know that

A $12-inch$ diameter has $22$ calories per square inch

By proportion

Find how many calories are in the entire pizza

so

$\frac{22}{1}\frac{cal}{\ in^{2}}=\frac{x}{113.04}\frac{cal}{\ in^{2}}\\ \\x=22*113.04\\ \\x=2,486.88\ calories$

Answer 2

Area= pi x radius^2
a=3.14 x 6^2
a=113.04 calories