A circle of radius 4 cm is cut from a Square sheet of side 8 cm. What is the area of the remaining sheet?
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Answer:
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Step-by-step explanation:
r=4cm
⇒ Square sheet side =12cm
Area of square sheet =12
2
=144sqcm
⇒ Circle area =πr
2
=
7
22
×4×4
=
7
352
sqcm
⇒ Remaining area =144−
7
352
=
7
1008−352
=
7
656
sqcm
⇒ Cost of whole sheet =Rs8/cm
2
=8×144
=Rs.1152
Hence, the answer is 1152.
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