Math, asked by ultimateg103, 4 months ago

find the perimeter of the sector whose radius is 21cm and central angle is 60 degree .

Answers

Answered by rais91114
1

Answer:

if we we will use area we can get perimeter

area of sector = θ/360 r^2

= 60/360 * 22/7 * 21*21

= 231

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