1.

The length of the minule hand of wall tA wire, in the shape of a square of side 1 1 em, is cut and rebent in the form of a circle. Find the area ensby the circular wire.isis 108 cm, then find the diameter of the protractor

Answer»

Perimeter of square=circumference of circle

perimeter of square=side×4

=11×4

=44cm

therefore circumference of the circle will also be 44cm

2πr=44cm

2×22/7×r=44cm

44/7×r=44cm

r=44/1×7/44

r=7cm

area of the circle=πr²

=22/7×7×7

=22×7

=154cm²



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