Respuesta :

Answer:

31.40

Step-by-step explanation:

3.14 x 10

= 31.40

I'm very sorry if you get it wrong tell me

Answer:

arc = 5π units

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius )

Here we have a semicircle with d = 10, so r = 5, then

arc = [tex]\frac{1}{2}[/tex] × 2π × 5 = 5π units