from a circular sheet of radius 10 centimetre a disc of radius 3 cm is cut out and the portion of the sheet left Behind is printed at the rate of Rs 0.35 per CM square find the cost of painting the sheet used π is equal to 22 by 7
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R= 10cm
r = 3cm
Area of sheet needed,
= pi (R^2 - r^2)
= 22/7 * 91
= 286 cm sq.
Cost of Print,
= 286 x 0.35
= ₹100.1
r = 3cm
Area of sheet needed,
= pi (R^2 - r^2)
= 22/7 * 91
= 286 cm sq.
Cost of Print,
= 286 x 0.35
= ₹100.1
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