Question

if the diameter of a small pizza is 8 inches what is the area in square inches

Answer 1

Given the information, we have the following circle shaped pizza:

we can use the following equation for the area of a circle:

$A=\pi\cdot r^2$

in this case, since the diameter is d = 8in, the radius is:

$\begin{gathered} r=\frac{d}{2}=\frac{8}{2}=4 \\ \Rightarrow r=4 \end{gathered}$

then, using the formula, we get:

$\begin{gathered} A=\pi\cdot(4)^2=(3.1416)(16)=50.2656 \\ \Rightarrow A=50.3in^2 \end{gathered}$

therefore, the area of the small pizza is 50.3 square inches