Question

If the radius of a circle is 11.9 meters, area = _________meters 2. (assume π = 22/7)

Answer 1

Answer:

Given, radius, r=20 cm, central angle, θ=90

o

, π=3.14

Area of sector =

360

o

θ

×πr

2

=

360

o

90

o

×3.14×20×20

=

4

1

×

100

314

×20×20

=314

∴ the area of sector is 314 cm

2

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