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The radius of a circle is 10 cm. if arc AB=60, What is the area of sector ACB?​

Sagot :

Area of sector =231cm

2

Angle subtended =60

A=πr

2

360

θ

231=

7

22

×r

2

×

360

60

⇒r

2

=

22

7

×231×6=441

⇒r=

441

=21