A steel wire which bent in the form of square enclosed an area of 121 cm2 if the same wire is bent in circle
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Answer:154cm2
Step-by-step explanation:
Area of square= a^2
a=√121
a=11cm
Now, perimeter of square=4a
=4×11
=44 .
Now, perimeter of square=perimeter of circle .
So, 44=2Πr
Πr=22
r =22×7/22
r=7
Hence area of circle=Πr^2
=22/7×7^2
=22×7 = 154cm2
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