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5. Solve the problem and find the answer

5. Solve the problem and find the answer-example-1
User Hamad
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1 Answer

7 votes

Answer:

x ≈ 263.1

Explanation:

The marked sides are the hypotenuse and the side adjacent to the given angle. The relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(70°) = 90/x . . . . use given values

x = 90/cos(70°) . . . . multiply by x/cos(70°)

x ≈ 263.1

_____

Additional comment

The mnemonic SOH CAH TOA is intended to remind you of the primary trig relations:

Sin = Opposite/Hypotenuse

Cos = Adjacent/Hypotenuse

Tan = Opposite/Adjacent

User Laaposto
by
8.6k points

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