Question

In the diameter of a semi-circular protactor is 14 cm then find its perimetr

Answer 1

The Protector is 14 cm in diameter then the radius will be 7 cm in
perimeter of a semi circle = 22+14=36cm

Answer 2

hye

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Perimeter of semicircle = $\pi * radius +2r$


Since d= 14cm


=>r = d/2 = 14/2cm

= 7cm.


P= $\frac{22*7}{7} + 2*7$


= 22cm + 14cm


= 36cm.
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Hope it helps  u