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HELP please with this
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3 votes
HELP please with this

HELP please with this-example-1
User Talonmies
by
4.8k points

1 Answer

1 vote

Answer:

CB = 9

Explanation:

To find CB, apply trigonometric function.

Reference angle = 60°

Hypotenuse = 18

Adjacent = CB

Apply CAH:

Cos 60 = Adj/Hyp

Cos 60 = CB/18

Cos 60 × 18 = CB

CB = Cos 60 × 18

CB = 9

User Barry Rosenberg
by
5.1k points
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