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In AUVW, u = 44 inches, ∠W = 56°, and ∠U = 117°. Find the length of v, to the nearest inch.

A. 30 inches
B. 26 inches
C. 48 inches
D. 62 inches

1 Answer

4 votes

Final answer:

Using the Law of Sines in triangle AUVW, with side U=44 inches and angles W=56° and U=117°, we find that side v is approximately 30 inches.

Step-by-step explanation:

To solve for the length of side v in triangle AUVW, we will use the Law of Sines. The Law of Sines states that the ratio of the length of a side to the sine of its opposite angle is the same for all sides and angles in a triangle.

Given: U = 44 inches, ∠W = 56°, and ∠U = 117°. To find side v, we first need the measure of angle V. Since the sum of the angles in any triangle is 180°, we can find angle V: ∠V = 180° - ∠W - ∠U = 180° - 56° - 117° = 7°.

Then we apply the Law of Sines:


  1. sin(∠W) / w = sin(∠U) / u = sin(∠V) / v

  2. sin(56°) / w = sin(117°) / 44

  3. v = (44 * sin(56°)) / sin(117°)

After calculating, we find that v is approximately 30 inches, which corresponds to option A.

User Ben Siver
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