Question

change the angle into radian (a) 30'(b)1°2'​

Answer 1

Answer:

2πRadians=360°

Explanation:

rest is simple calculation by unitary method also 30' is 1/2°

Answer 2

Answer:

a) 30' = (30/60)°=(1/2)° =

$\frac{\pi}{180} \times \frac{1}{2} = \frac{\pi}{360} \: radian$

b) 1°2' = 1°+(2/60)°=1°+(1/30)°=(31/30)°=

$\frac{\pi}{180} \times \frac{31}{30} = \frac{31\pi}{5400} \: radian$