Question

Find the value of x (show all work on paper):

Adj: 48
Hyp: 50

A:42
B:10
C:14
D:70

Answer 1

16.260 (3 d.p.)

Explanation:

• Use SOHCAHTOA
• Since you have the adj and hyp, use CAH
• cos(x) = adj / hyp = 48 / 50
• x = cos-1(48/50) [What i mean by cos-1 is the inverse of cosine. You can find this by pressing shift + cos on most calculators)
• This gives you 16.260 (to 3 d.p.)