What is the length of YZ?
Y
9 ft.
51°
X

Step-by-step explanation:

take 51 degree as reference angle

using sin rule

sin 51=opposite/hypotenuse

0.77=YZ/9

9*0.77=YZ

6.93=YZ

6.9=YZ

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right