Question

From a circular sheet of diameter 21 cm , two circular sheets of diameter 7 cm and
14 cm respectively are cut out

1) find the area of the remaining sheet.

2) find the area of the biggest circular sheet .

3) find the ratio of the area of two circular sheets of diameter 14 cm to 7 cm .

4) find the ratio of the circumference of the circle of diameter 21 cm to diameter 7 cm .

5) find the ratio of diameter 7 cm to 14 cm .​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

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