Question

What is the length of wire which is in the shape of semicircle with radius 7cm

Answer 1

$Given \:radius \:of \:a \: semicircle (r) = 7\:cm$

$Length \:of \:the \:semicircle = \pi r \\= \frac{22}{7} \times 7 \:cm \\= 22\:cm$

Therefore.,

$\red { Length \:of \:the \:semicircle} \green { = 22\:cm }$

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Answer 2

Answer:

Radius =7cm

Length of semicircle =

$\pi \: r$

$\frac{22}{7} \times 7 \\ = 22cm$

hope IT HELPs.....!!