Question

Find the circumference of a circle whose diameter is 21 cm.

Answer 1

$\huge{\bigstar{\bigstar{\underline{\underline\blue{\mathcal{\red{solution!!...}}}}}}}$

we know that the diameter is double of the circumference...

so, circumference will be half of the diameter...

diameter = 21cm...

circumference = 21/2

circumference = 10.5cm

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