Question

a A circular piece of wood with an area of 2021 cm2 has a smaller circle cut out from it. The area of the remaining piece is 1211 cm2. Find the area of the smaller circle (in terms of tt) and the radius of the smaller circle. ​

Answer 1

Answer:

In the above figure we have to get area of smaller circle

Area of larger circle (red colour) = 2021 cm²

Area of shaded region (green colour) = 1211 cm²

Area of smaller circle (yellow colour) =(2021-1211)cm²

=810 cm²

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