Question

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Solve for 2. Round to the nearest tenth, if necessary.
5-3
O
52
х
N

Answer 1

x = 3.3

Explanation:

Reference angle = 51°

Hypotenuse = x

Adjacent = 5.3

Apply trigonometric function CAH, which is:

Cos 51° = Adj/Hyp

Cos 51° = 5.3/x

x*Cos 51° = 5.3

x = 5.3/Cos 51°

x = 3.3 (nearest tenth)