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A large pizza is advertised to have a 14 inch diameter. If a customer orders two large pizzas how many square inches of pizza will he receive?

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sophiajackson46
So that would be finding the area. 
The formula for a circle is A = pir^2
So if the diameter is 14 than the radius is 7. 
A = 3.14 * 7^2
A= 3.14* 7*7
A= 153.83 
So 1 pizza is 153.83 inches. 
Multiply it by 2 to find the amount of square inches he will receive
. 
The formula for the area of a circle is:
π x r²

We halve the diameter to get the radius, so we can do the equation.
14 / 2 = 7

Area = π x 7²
         = 153.93804inches²

Since we have two pizzas, we multiply this by 2:

153.93804 x 2 = 307.8760801
                          = 307.88inches² (2dp)

So 307.88inches² of pizza will be received.