Question

In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. The length of the arc is; *
a. 22cm
b. 22cm²
c. 22
d. none of the above​

Answer 1

Answer:

option B

step by step explaination:

theta=l/r

π/3=l/21

22/7*21=3l

66=3l

22=l