2 years ago

The area of a circle is 19.7cm². what is the radius?

Mathematics

1 answer:

Luba_88 [7]2 years ago

3 0

Step-by-step explanation:

area of a circle = 19.7cm²

πr²= 19.7cm²

22/7 r²= 19.7

r= 2.50 cm

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\begin{cases}
n=\textit{number of sides}\\
s=\textit{length of a side}\\
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\qquad~~ in~degrees\\
----------\\
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\end{cases}
\\\\\\
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