Answer:
The length of the arc is 4π
Step-by-step explanation:
To calculate the arc we first have to calculate the perimeter of the circle
r = 10
C = π * 2r
We replace the value of r
C = π * 2 * 10
C = 20π
Now that we know the perimeter we have to multiply it by 72/360 which is the portion marked with respect to the complete circle
20π * 72/360 = 4π
