1.

A wire in the form of a square of sides 4.5 cm is bent into a circle . express radius of the circle in terms of pie

Answer»

Answer:

PERIMETER of square = 4*4.5=18 cm

perimeter of CIRCLE =perimeter of square

2πr=18

r=18/2π=9/π

or

9/3.14=2.86 cm

because π=3.14

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