9 m
5 m
3. From a circular sheet
of a card paper of
radius 9 m, a circle of
radius 5 m is removed.
Calculate the area of
the ring.
Answers
Answered by
4
Answer:
area of circle =πr²
big circle
22/7*9*9
22/7*81m²
small circle
22/7 *5*5
22/7*25m²
remaining area
big - small
22/7*81-22/7*25(take value of pie common)
22/7(81-25)
22/7*56
22*8
176m²
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