Math, asked by ABHI57421, 1 year ago

A CD has a radius of 21 cm.There is a hole in the middle of the CD which has a radius of 14 cm.find the area of the CD.

Answers

Answered by viral21

5

area of big CD= πr2
area of am CD=πr2
hence required area is π(r12-r22)
π(441-196)
π(245)

Answered by TTG003

23

Thus,Area of the CD is 770
${cm}^{2}$

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