the radius of a circle is 7cms.the angle substended by an arc of the circle at centre is 45degrees.find the area of sector
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Step-by-step explanation:
Area is a sector = Angle/360 x 2πr
= 45/360 x 2 x 22/7 x 7
= 1/8 x 44
= 44/8
= 11/2
= 5.5 cm square
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