7)

Convert from radians to degrees multiply by the radians

True.

8)

Convert into radians.

Convert from degrees to radians multiply by

Option 2 is correct answer.

9)

Convert into radians.

Convert from degrees to radians multiply by

Option 4 is correct answer.

10)

Convert   radians into degrees.

Convert from radians to degrees multiply by the radians

Option 1 is correct answer.

11)

Convert   radians into degrees.

Convert from radians to degrees multiply by the radians

Option 2 is correct answer

12)

Angle is equal to .

Convert   radians into degrees.

Convert from radians to degrees multiply by the radians

True.

13)

Exact value of

14)

Exact value of