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What is the area of shaded portion, where the length of it is $14$ units and radius of the upper semicircle is $7$ units?

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196

sq. units

98

sq. units

200

sq. units

None

answer is A.

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Detailed Solution

Given,

Area of a rectangle is (length)×(breadth).
If we subtract the area of the semi circle from the area of the rectangle & then add the area of the upper semi circle, we get the net area or alternatively.

\Rightarrow

Net area

= 14 \times 14

\Rightarrow

Net area

= 196 sq . units

Hence, option 1 is correct.

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What is the area of shaded portion, where the length of it is 14 units and radius of the upper semicircle is 7 units?

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What is the area of shaded portion, where the length of it is $14$ units and radius of the upper semicircle is $7$ units?