from a square sheet of each side 7 cm comma a circle of radius 3.5 CM is removed from the centre of the square sheet. find the area of the remaining sheet. (take π =3.14)
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Step-by-step explanation:
The area of the circular sheet with 4cm radius is,
A=πr2
=16π
The area of the circular sheet with 3cm radius is,
A=πr2
=9π
Since the circle with radius 3cm is removed, then the remaining area is
A=16π−9π
=7π
=7×3.14
=21.98cm2
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