1. For ABC, what is the value of cosC?

A.) 0.5

B.) 0.6

C.) 0.8

D.) 0.9

2. A right triangle's hypotenuse is 20 cm long. What is the length of the side opposite a 60° angle? Give your answer to the nearest tenth of a centimeter.

A.) 40

B.) 18.5

C.) 20

D.) 17.3

3. A right triangle's legs are 3 and 4 meters long. What is the measure of the angle adjacent to the 4-meter leg to the nearest tenth of a degree?

A.) 35.9°

B.) 36°

C.) 36.9°

D.) 37.5°

Question

Mathematics

Xiomara Molina

26 August, 15:29

1. For ABC, what is the value of cosC?

A.) 0.5

B.) 0.6

C.) 0.8

D.) 0.9

2. A right triangle's hypotenuse is 20 cm long. What is the length of the side opposite a 60° angle? Give your answer to the nearest tenth of a centimeter.

A.) 40

B.) 18.5

C.) 20

D.) 17.3

3. A right triangle's legs are 3 and 4 meters long. What is the measure of the angle adjacent to the 4-meter leg to the nearest tenth of a degree?

A.) 35.9°

B.) 36°

C.) 36.9°

D.) 37.5°

+1

Answers (1)

Know the Answer?

Edith Bean · Answer 1

1. The cosine of C is the ratio of the side adjacent to it to the hypotenuse.

cosine C = 54 / 90 = 0.6

The answer is letter B.

2. Let x be the length of the side opposite to 60° such that,

sin 60° = h / 20 m

The value of h is equal to 17.32 m.

3. Let the angle be C such that,

tan C = 3 / 4

The value of C is 36.87. The answer is letter C.