Question

find the circumference of circle. having diameter =9cm
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Answer 1

Must see the Solution first

Diameter of circle = 9 cm

Then, radius will be = 9/2

Now,

Circumference of circle = 2π r

$= 2 \times \frac{22}{7} \times \frac{9}{2} \\ = \frac{44 \times 9}{7 \times 2} \\ = \frac{396}{14} \\ = 28.28$

Answer

28.28 cm