Question

Find the circumference of a circle whose diameter is 4.9m

Answer 1

diameter = 4.9 m
radius = 4.9/2 m
circumference
= 2 x 22/7 x 4.9/2
= 15.4

Answer 2

circumference= πd
circumference= 22/7×4.9
circumference= 15.4m

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Hope it helps!