How you find the perimeter of semi circle if diameter is 28 cm?

Answer 1

first we find the circumference which is 2 pi r.then we divide it with half because we want half of circumference,my ans is 72 cm. peri meter is circumference divided by 2 then add diameter in ans

Answer 2

Multiply its diameter by (pi), or its radius by (2 pi).

Answer 3

11