Law of Sines Worksheet
Practice applying the Law of Sines to solve for unknown sides and angles in non-right triangles.
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Law of Sines Worksheet
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Read each problem carefully and use the Law of Sines to solve for the unknown side or angle. Round your answers to the nearest tenth.
1. In triangle ABC, angle A = 45°, angle B = 60°, and side a = 10 cm. Find the length of side b.
2. In triangle PQR, angle P = 75°, side p = 12 inches, and side q = 8 inches. Find the measure of angle Q.
3. The Law of Sines states that the ratio of the length of a side of a triangle to the sine of the angle that side is the same for all three sides of the triangle.
4. The Law of Sines can be used to solve any triangle, regardless of whether it is a right triangle or not.
True
False
5. A surveyor wants to find the distance across a river. She picks two points, A and B, on her side of the river that are 200 feet apart. She then picks a point C on the opposite side of the river. If angle CAB is 50° and angle ABC is 70°, find the distance from A to C.