Question

A semicircular shaped window has diameter of 63 cm.its perimeter equals

Answer 1

Heya, here is your Answer :-

Diameter,d = 63 cm
Radius,r = d/2 = 63/2 = 31.5 cm

Perimeter of semicircular arc =
$\pi \: r$
So,
=> πr = 22*31.5/7 = 99 cm

Length of Diameter = 63 cm

Total Perimeter = (99+63) = 162 cm

So,
Perimeter of Semicircular Window is 162 cm.

Answer 2

Answer:

Step-by-step explanation: