Math, asked by khaniftikar05, 9 months ago

find the area of sector of angle 120° and radius 18 cm​

Answers

Answered by Jahnavi305
4

Step-by-step explanation:

Area of sector =120/360x22/7x18x18

=1/3x22/7x18x18

=22/21x324

=339.42

Answered by 1Angel25
4
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Given, \\ angle \: = {120}^{o} \\ radius \: = 18 \: cm \\ \\ To \: find,\\ area \: of \: sector \: = \:?\\ \\So,\\ Area \: of \: sector \: =  \frac{120}{360} \times \frac{22}{7} \times ( {r})^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{120}{360} \times \frac{22}{7} \times ({18})^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{120}{360} \times \frac{22}{7} \times 18 \times 18 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{855360}{2520} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 339.42857\:{cm}^2
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