Answer:
Step-by-step explanation:
21.7
Use the cosine function, which is the ratio (adjacent side) / (hypotenuse).
Here we have cos 37 degrees = adj / hyp = 17.3 / x, and so
x 1
------ = -------------------
17.3 cos 37 deg
Then the hypotenuse length, x, is 17.3 / 0.799 = 21.7
