Question

If the radius of a circle is r what is the perimeter of semi segment

Answer 1

$pi \times r$

i think sooo..but not clear..

Answer 2

Answer:

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