Question

5. The diameter of a circle is 14 cm. An arc subtend an angle 72º at the centre. The length of the arc is: [AMU:1998-99) (a) 4.4 cm (b) 8.8 cm (c) 6.6 cm (d) 7.7 cm​

Answer 1

l = 6.594 cm

Step-by-step explanation:

54° = π/180 × 54 = 3π/10

54° = 3×3.14/10 = 0.942 rad

l = r@

l = 7 × 0.942

l = 6.594 cm

Hope it will help you..