Law of Cosines - Quiz Quiz

Question 1

Which equation can be used to solve for angle cap n in the triangle?

Revolt · Accepted Answer

D: 6 point 2 squared is equal to 3 point 6 squared plus 4 point 3 squared minus 2 3 point 6 4 point 3 cosine cap n

Question 2

What is the approximate length of the third side of the triangle?

Revolt · Accepted Answer

C: 35 point 5  mm

Question 3

What is the approximate length of the third side of the triangle?

Revolt · Accepted Answer

A: 35 point 5  mm

Question 4

What is the approximate measure of angle cap t in the triangle?

Revolt · Accepted Answer

B: 96 degrees

Question 5

A ship travels 200 miles due west, then adjusts its course 30 degrees north of west. The ship continues on this course for 30 miles. Approximately how far is the ship from where it began?

Revolt · Accepted Answer

C: 226 point 5  mi.

Question 6

Which equation can be used to solve for x in the triangle?

Revolt · Accepted Answer

C: x squared is equal to 4 point 7 squared plus 4 point 0 squared minus 2 4 point 7 4 point 0 cosine 41 degrees

Question 7

In triangle cap m cap n cap o , cap m cap n is equal to 20 units, cap n cap o is equal to 15 units, and cap m cap o is equal to 18 units. What is the approximate difference between the largest and smallest angle measures?

Revolt · Accepted Answer

B: 28 degrees

Question 8

Which equation can be used to solve for angle cap n in the triangle?

Revolt · Accepted Answer

A: 6 point 2 squared is equal to 3 point 6 squared plus 4 point 3 squared minus 2 3 point 6 4 point 3 cosine cap n

Question 9

The bottom of a 12 -foot ladder is placed on the ground 7 feet from the base of a pipe sticking out of the ground. The top of the ladder is placed an unknown distance off the ground, leaning on the pipe. The ladder and the ground meet at a 56.4 degrees angle. At what angle does the pipe meet the ground?

Revolt · Accepted Answer

A: 35.7 degrees

Question 10

Which triangle can be solved using only the law of cosines?

Revolt · Accepted Answer

A: Saki’s triangle

Law of Cosines - Quiz Quiz Answers

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