Question

what are the area& perimeter of semi circle??​

Answer 1

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

Answer 2

Answer:

area of semi circle = π r^2/2

perimeter of circle= 2πr/2