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Find the area of the circleA) 56.52 in^2B) 1,017.36 in^2C) 254.34 in^2D) 28.26 in^2

Find the area of the circleA) 56.52 in^2B) 1,017.36 in^2C) 254.34 in^2D) 28.26 in-example-1
User Magic Bean
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1 Answer

19 votes
19 votes

The area of the circle can be found through the formula:


\begin{gathered} A=\pi\ast r^2 \\ remember,\text{ } \\ r=(D)/(2) \end{gathered}

since the diameter is given, find the radius,


\begin{gathered} r=(18in)/(2) \\ r=9in \end{gathered}

apply the formula of the area using the approximation for π as 3.14,


\begin{gathered} A=\pi\ast(9in)^2 \\ A=3.14\ast81in^2 \\ A\approx254.34in^2 \end{gathered}

Answer:

The area of the circle is approximately 254.34 in²

User Ajmal Sha
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