The learner will use the cosine ratio to calculate measurements of right triangles.
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of side a in the triangle shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of side a in the triangle shown. If necessary, round to the nearest tenth.
Correct Answer
16.4 ft
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of side a in the triangle shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
16.4 ft
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of side b in the triangle shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of side b in the triangle shown. If necessary, round to the nearest tenth.
Correct Answer
32.5 cm
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of side b in the triangle shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
32.5 cm
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the measure of angle A in the triangle shown. If necessary, round to the nearest tenth of a degree.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the measure of angle A in the triangle shown. If necessary, round to the nearest tenth of a degree.
Correct Answer
43.7°
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the measure of angle A in the triangle shown. If necessary, round to the nearest tenth of a degree.
Your Answer
Correct Answer
43.7°
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of side a in the triangle shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of side a in the triangle shown. If necessary, round to the nearest tenth.
Correct Answer
8.0 km
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of side a in the triangle shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
8.0 km
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of side b in the figure shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of side b in the figure shown. If necessary, round to the nearest tenth.
Correct Answer
8.0 yd
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of side b in the figure shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
8.0 yd
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Correct Answer
63.3°
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Your Answer
Correct Answer
63.3°
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of line segment QU in the rectangle shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of line segment QU in the rectangle shown. If necessary, round to the nearest tenth.
Correct Answer
5.1 km
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of line segment QU in the rectangle shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
5.1 km
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of side x in the triangle shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of side x in the triangle shown. If necessary, round to the nearest tenth.
Correct Answer
10.9 in
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of side x in the triangle shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
10.9 in
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the length of side y in the triangle shown. If necessary, round to the nearest tenth.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the length of side y in the triangle shown. If necessary, round to the nearest tenth.
Correct Answer
2.2 cm
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the length of side y in the triangle shown. If necessary, round to the nearest tenth.
Your Answer
Correct Answer
2.2 cm
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Find the measure of angle B in the triangle shown. If necessary, round to the nearest tenth of a degree.
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Correct!
Find the measure of angle B in the triangle shown. If necessary, round to the nearest tenth of a degree.
Correct Answer
63.1°
Question 1 of 10
Right Triangle Trigonometry: Using the Cosine Ratio
Incorrect
Find the measure of angle B in the triangle shown. If necessary, round to the nearest tenth of a degree.
Your Answer
Correct Answer
63.1°
Question 1 of 10
Score
You have answered 5 of 10 questions correctly.
50%
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- Published
- 12/12/2013
- Last Updated
- 12/12/2013
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Right Triangle Trigonometry: Using the Cosine Ratio by Fox Valley Technical College is licensed under a Creative Commons Attribution 3.0 Unported License.