Question

How do I solve this and what is the answer

Answer 1

The formula to covert the radian into degrees is given by,

`\text{Radian}*(180)/(\pi)=\text{Degrees}`

To convert π/9 radian into degrees,

`(\pi)/(9)*(180)/(\pi)=(180)/(9)=20\text{ degrees}`

Answer: Option 2) 20 degree