find the area of the sector with central angle of π/5 radian in a circle of radius 10cm
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Answer:
Given, radius, r=10cm, central angle, θ=72
o
, π=3.14
Area of sector =
360
o
θ
×πr
2
=
360
o
72
o
×3.14×10×10
=
360
72×314
=
5
314
=62.8
∴ The area of sector is 62.8cm
2
.
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