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44 votes
Dinner plate has a diameter of 8 inches. what is the plate's area?

User Stevecowling
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1 Answer

11 votes
11 votes

The plate is a circle.

diameter = 8 inches


\begin{gathered} \text{area}=\pi r^2 \\ \text{where} \\ r=\text{radius}=(8)/(2)=4\text{ inches} \\ \text{area}=\pi*4^2 \\ \text{area}=16\pi \\ \text{area}=(22)/(7)*16 \\ \text{area}=(352)/(7)=50.2857142857 \\ \text{area}=50.30inches^2 \end{gathered}

User Rango
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