HELP please with this

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Sota Sugiura asked Feb 8, 2022

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19 votes

HELP please with this

Mathematics
college

Sota Sugiura asked Feb 8, 2022

by Sota Sugiura

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1 Answer

24 votes

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

Janelli answered Feb 13, 2022

by Janelli

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