Question

Find the perimeter of the adjoining figure, which is a semicircle including its diameter.

Answer 1

Radius = $5$ $cm$
Length of curved part = $\pi r$

= $\frac{22}{7}\times 5$

= $15.71$ $cm$

Total perimeter = Length of curved part + Length of diameter

= $15.71 + 10 = 25.71$ $cm$