The angle in the figure is a central angle in radians

Tim Grant asked Jan 14, 2023

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12 votes

Tim Grant asked Jan 14, 2023

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28 votes

We have the following:

$\begin{gathered} S=r\cdot e \\ r=5 \\ e=0.4 \\ \text{replacing} \\ S=5\cdot0.4 \\ S=2 \end{gathered}$

The answer is 2 cm

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