Law of Sines
Recall / Warm-Up
In a right triangle, if the side opposite an angle is 5 and the hypotenuse is 13, what is the sine of that angle?
5/13
12/13
5/12
13/5
If , what is to the nearest degree?
37°
53°
30°
60°
In triangle ABC, angle A = 50° and angle B = 70°. What is angle C in degrees?
Fluency Practice
In triangle ABC, angle A = 40°, angle B = 75°, and side . Find side . Round to the nearest hundredth.
In triangle DEF, angle D = 35°, angle F = 80°, and side . Find side . Round to the nearest hundredth.
In triangle PQR, angle P = 50°, angle Q = 60°, and side . What is side ? Round to the nearest tenth.
15.8
11.3
12.4
18.3
In triangle ABC, angle A = 30°, side , and side . Find angle B in degrees. Round to the nearest tenth.
In triangle XYZ, angle X = 45°, angle Y = 100°, and side . Find side . Round to the nearest tenth.
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