Question

find the perimeter of the adjoining figure, which us a semicircle including it's diameter is 10 cm​

Answer 1

$semiperimeter = \pi \: r + diameter \\ \\ \frac{22 \times 5}{7} + 10 \\ \\ \frac{110}{7} + 10 \\ \\ \frac{110 + 70}{7} \\ \\ \frac{180}{7} \\ \\ \boxed{ \purple{ \implies25.71}}$

Answer 2

Step-by-step explanation:

Circumference of semicircle => 2πr

=> 2x22/7x5

=> 44/7x5