Question

What is the length of arc S shown below?

Enter an exact expression
10 cm
37
2
S
The angle in the figure is a central angle in radians.
cm

Answer 1

15π or 47.12

Explanation:

Given that :

θ = 3π/2

Radius, r = 10

Length of arc S :

Using the relation :

S = rθ ; r = central angle in radian

S = 10 * 3π/2

S = 30π/2

S = 15π or 47.12