Question

If the diameter of a circle is d then perimeter of semicircle is

Answer 1

Answer:

Step-by-step explanation:

The perimeter of a circle is π × d where d is the diameter so half of that is 1/2 π × d. But If you are going to walk around a semicircle you need to go half way around the circle and then across a diagonal to get back to where you started so the perimeter is 1/2 π × d + d.

Answer 2

The perimeter of a circle is π × dwhere d is the diameter so half of that is 1/2 π × d. But If you are going to walk around a semicircle you need to go half way around the circle and thenacross a diagonal to get back to where you started so the perimeter is 1/2 π ×d + d.