An arc of a circle of radius 7cm subtends an angle of 120. Find its perimeter.
Answers
Answered by
2
Answer:
Perimeter of circle can be found by
Arc length + 2*radius
14 + 120/360 * 14 pi
14 + 1/3 * 44
14 + 44/3
14 + 14.6
28.6 cm
Hope it helps...✌️✌️
Answered by
1
Answer:
Area=
360
120
×πr
2
=
3
π
×7×7=49×
3
π
=49×
7×3
22
=
3
154
cm
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