Can someone please check my work thanks!!

1) An angle with a negative rotation passes through the point (-5, 8). To the nearest degree, what is the measure of the angle?

a) -238

b)-148

c) -122

d) – 58

My answer is B -142

2) For -180< 0 < -90, which of the primary trigonometric function is positive in this interval?

A) Cos 0

b) Tan 0

c) Sin 0

My answer is B Tan 0

3) A central angle subtends an arc of 35cm. if the radius of the circle is 12 cm, what is the measure of the central angle to the nearest degree?

A. 2.9

B. 292

C. 167

D. 173

My answer is A 2.9

4) Are -5 (pi square) /9 and 5 (pi square) /9 coterminal angles?

My answer:

No they are not coterminal angles because it is not minuses or added by 360.

5) what is the exact value of sin 5 (pi square) / 6?

The exact value is ½

Thanks in advance!!