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Question

Find the area of a sector of a circle with radius 14 cm, if the length of the corresponding arc is 22 cm.

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Solution

We have,

Radius of circle=14cm.

Length of arc=22cm.


Using formula,

Angle=radiusarc


Now,

Angle=2214

Angle=222×7

Angle=π2(π=227)

Angle=θ=π2


So,

Area of sector =θ360o×πr2

=90o360o×227×14×14

=14×22×2×14

=22×7

=154sq.cm.


Hence, this is the answer.


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