Question

In a circle of radius 21 cm, an arc subtends an angle of ${60}^{\circ }$ at the centre the length of the arc is 22 cm.

• A. True
• B. False
• C. Neither
• D. Either

Answer 1

Answer: (A)

True

$Lengthofanarc=\frac{\theta }{360}\times 2\times \frac{22}{7}\times r=\frac{60}{360}\times 2\times \frac{22}{7}\times 21=22cm$