Question

the length of the arc subtended by an angle of 7pie/4 radians on a circle of radius 20 cm is​

Answer 1

Answer:

110cm

Step-by-step explanation:

Angle of arc = 7π/4 radians

Radius = 20cm

Arc lenght = x

We know that

θ (in radians) = arc lenght/radius

7π/4 = x/20

x = 7π×20/4

x = 7×(22/7)×5

∴x=110cm