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Find the area of the sector of a circle of radius 8 cm and arc with length 15 cm.
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Answer is 60 cm

Solution ::

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Let centre be O {red dot}

radius=OA=8cm=r

length of arc= 15cm=L

Area of sector=\({1\over 2}\times r\times l\)

\({1\over 2}\times 8\times 15\)

\(120\over 2\)

=60 cm2.

 

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