Find the area of the unshaded portion of figure, the shaded portions being semi-circular regions.

100.5 m^{2}

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101.5 m^{2}

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201.5 m^{2}

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101.8 m^{2}

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Solution

The correct option is B $101.5 m^{2}$ .
Area of unshaded portion $=$ Area of rectangle - Area of circle
$=$ $l \times b - π r^{2}$
$=$ $14$ $\times 10 - \frac{22}{7} \times 3.5 \times 3.5$
$=$ $140 - 38.5$
$=$ $101.5$ $m^{2}$

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Question 76

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