Question

find the perimeter of a semicircle includin its diameter (diameter=10cm​

Answer 1

$\bold{\underline{\underline{☘Explanation}}}$

First of all we will find the radius

$\implies$ $2 ÷ 10$

$\implies$ $5$

So the radius = 5 cm

Now we will find the perimeter/circumference

$\implies$ $Perimeter \: of \: semicircle \: = [tex]\frac{perimeter \: of \: a \: circle}{2}$ + 10

$\implies$ $5 × 3.14 × 10$

$\implies$ $15.70 + 10$

$\implies$ $25.70cm$

$\implies$ $Therefore \: the \: perimeter \: = \: 25.70cm$