Question

The perimeter of a semicircle of radius $7cm$ is equal to

• A. 32 cm
• B. 36 cm
• C. 44 cm
• D. 48 cm

Answer 1

The correct option is B 36 cm

Perimeter of a circle $=2\pi r$

$\therefore$ Perimeter of a semicircle $=\pi r$

$\Rightarrow$ Perimeter of the semicircle $=\frac{22}{7}\times 7=22cm$