Question

Find the length of an arc of a circle of radius 6.4 cm which subtends an angle of 90° at the
centre.​

Answer 1

Answer:

Length of the arc = 10.06cm

Step-by-step explanation:

Length of arc is rθ, where r is the radius and θ is the angle subtended in radian.

According to the problem, length of the arc = 6.4xπ/2 $= 3.2 . \frac{22}{7}$ cm = 10.06cm