Question

find the diameter of a circle whose circumference is 12.56 cm

Answer 1

Hii There!!!

Circumference of a circle = 2 × π × r

=) 12.56 = 2 × 22/7 × r

=) 12.56 × 7 = 44 × r

=) 87.92 / 44 = r

=) r = 1.9 cm

Since, r = d/2

=) or d = 2r

=) d = 2 × 1.9

=) d = 3.8cm

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