Question

find the perimeter and area of semi circular plate of radius 25 cm

Answer 1

area of circle is pi r^2 and perimeter is 2pi r
so for semicircles.. its just half of it
$\pi {r }^{2} = \pi {25}^{2} =$
1,964.2857142857
divinding this number by 2 will givr the area od semi circular plate
982.1428571429


for perimeter with the same concept.. answer is 78.5714285714