Question

ln a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find the
length of the arc.

Answer 1

Answer:

length of the arc = 2 * θ / 360 degree Πr

= 2* 60/360 * 22/7 * 21

= 22 cm square

Answer 2

We know that,

• length of arc = x*/360*×2×π×r
• 60*/360*×2×22/7×21cm
• 1/6×2×22×3
• 132/6
• 22

Therefore, the length of Arc is 22cm