Respuesta :

Hello from MrBillDoesMath!

Answer:

4 Pi

Discussion:

72/360 = 1/5 so the length of the arc is (1/5) the circumference or

(1/5) ( 2 Pi * 10)                      => C = 2 Pi r

(20/5) Pi =

4 Pi

Thank you,

MrB

Answer:

Step-by-step explanation:

Length of arc =72°/360°*2π10

Length of arc=4π