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In ΔUVW, w = 7.2 cm, v = 6.2 cm and ∠V=8°.

Find all possible values of ∠W, to the nearest
10th of a degree.

In ΔUVW, w = 7.2 cm, v = 6.2 cm and ∠V=8°. Find all possible values of ∠W, to the-example-1

1 Answer

5 votes

We can use the Law of Sines to find the measure of angle W:

sin(W)/w = sin(V)/v

sin(W) = w*sin(V)/v

sin(W) = 7.2*sin(8°)/6.2

sin(W) ≈ 0.1001

Taking the inverse sine of both sides, we get:

W ≈ 5.78° or W ≈ 174.22°

Since W is an angle in a triangle, it must be between 0° and 180°. Therefore, the only possible value for ∠W is:

W ≈ 5.78° (to the nearest tenth of a degree).

User Nolequen
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