Question

A round cake has a diameter of 9 inches , what is the area of the top of the cake ?The cake is cut into equal pieces , what is the area of the top of ONE PIECE of cake ?

Answer 1

Given

Diameter 9inches

Radius 4.5 inches

`Area\text{ of circle =}\pi r^2`

Solution

`\begin{gathered} A=\pi*4.5^2 \\ A=20.25\pi \\ A=63.61725in^2 \end{gathered}`