4.12 Quiz Law Of Sines

Question: What is the length of line segment RS? Use the law of sines to find the answer. Round to the nearest tenth.

Answer: 2.4 units

Question: Which is the approximate measure of angle Y? Use the law of sines to find the answer.

Answer: b. 59°

Question: Use the law of sines to find the value of w. What is the best approximation of the value of w?

Answer: b. 4.0 cm

Question: What is the approximate measure of angle K? Use the law of sines to find the answer.

Answer: b. 34°

Question: Consider the diagram and the proof below. What is the missing statement in Step 6?

Answer: c. csin(B) = bsin(C)

Question: What is the value of z, rounded to the nearest tenth? Use the law of sines to find the answer.

Answer: b. 3.2 units

Question: In ABC, c= 5.4, a= 3.3, and m<A= 20°. What are the possible approximate lengths of b? Use the law of sines to find the answer.

Answer: c. 2.3 units and 7.8 units

Question: Which expression represents the approximate length of BC?

Answer: a. (3) sin(66°)/ sin(38°)

Question: Which is the best approximation of the value of x? Use the law of sines to find the answer.

Answer: b. 2.1 units

Question: Use the law of sines to find the value of y. Round to the nearest tenth.

Answer: 2.5