If the perimeter of the protector is 72 cm calculate the area used by 22 upon 7
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Step-by-step explanation:
Perimeter of protector = 72cm
22/7*r+ 2r = 72
r(22/7+2)=72
r(36/7)=72
r = 14 cm
area = 22/7*r*r*1/2
= 22/7*14*14*1/2
=308 cm² ANS
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