Question

Please help me with this

Answer 1

9514 1404 393

Answer:

• C = 40°
• c ≈ 5.79
• a ≈ 6.89

Explanation:

The acute angles in a right triangle are complementary, so ...

C = 90° -50°

C = 40°

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SOH CAH TOA reminds you of the relations ...

Cos = Adjacent/Hypotensue

Sin = Opposite/Hypotenuse

Then ...

cos(50°) = c/9

c = 9·cos(50°) ≈ 5.79

sin(50°) = a/9

a = 9·sin(50°) ≈ 6.89