Question

Plzz solve this one fast.

Answer 1

perimeter of the figure is 25.7m
Firstly, find perimeter of the semicircle(exluding diametric line) i.e. (1/2)(perimeter of full circle)
=1/2(2*pie*d/2)
=1/2(2*3.14*10/2)
=1/2(31.4)
=15.7m
then add length of diametric line i.e d=10m

Now add both
ans is 25.7m

Answer 2

Diameter = 10 cm
Radius = 10/2=5 CM
Circumference of the circle= perimeter of the circle =2pie r
So, perimeter of the semicircle =1//2*2pie r
1/2 * 2*22/7*5
=15.72 cm
May you find it helpful............