Question

If one circle daimeter is 15 cm so what is its circumference?

Answer 1

Radius =d/2=15/2=7.5
Circumference =2×22/7×7.5
=2×22×1.5
=44×1.5
=66cm
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Answer 2

Hey friend,
Here is the answer you were looking for:
$diameter = 15 \\ radius = \frac{15}{2} \\ \\ circumference = 2\pi \: r \\ circumference = 2 \times \frac{22}{7} \times \frac{15}{2} \\ \\ circumference = \frac{330}{7} \\ circcumference = 47.14 cm$

Hope this helps!!!

@Mahak24

Thanks...
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