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The diameter of a circle is 9 centimeters. Find the area to the nearest tenth.

The diameter of a circle is 9 centimeters. Find the area to the nearest tenth.
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3 votes
The diameter of a circle is 9 centimeters. Find the area to the nearest tenth.

User Ramesh Sangili
by
7.0k points

1 Answer

7 votes

Answer:

63.6 square cm

Explanation:


d = 9 \: cm \implies \: r = 4.5 \: cm \\ area \: of \: circle \\ = \pi {r}^(2) \\ = 3.14 * ( {4.5})^(2) \\ = 3.14 * 20.25 \\ = 63.585 \\ = 63.6 \: {cm}^(2) \\

User Sebastian Hajdus
by
7.7k points
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