Can you help me find this answer?

What is the squate root of r^64 needa r^4 b r^8 c r^16 d r^32

1. if sin t=.29 and ,sin w=.43 both t and w are positive, and the angles determined by t and w are in quadrant 2, then which of the following statements is true? a. t > w b. w > t c. cannot be determined 2. if cos t=-.42 and ,cos w=-.80 both t and w are positive, and the angles determined by t and w are in quadrant 3, then which of the following statements is true? a. t > w b. w > t c. cannot be determined

Find the perimeter of the figure shown above. a. 20 in c. 30 in b. 24 in d. 18 in select the best answer from the choices provided a b c d