Question

a wire of length 132 cm long is in the form of a circle.Find the angle in radian subtented by an arc of length 11cm.​

Answer 1

Answer:

a wire of length 132 cm long is in the form of a circle.Find the angle in radian subtented by an arc of length 11cm.

Answer 2

Answer:

here as 132 cm is length of wire

circumference = 2πr

132 = 2 × 22/7 × r

$\frac{132 \times 7}{22 \times 2} = r$

$\frac{132 \times 7 }{44} = r$

$3 \times 7 = r$

r = 21

angle subtended = arc/radius

= 11/21

= 11/21 radian