Bluebook SAT Test Right Triangles and Trigonometry 1

Question 1

A right triangle has legs of length 9 and 12. What is the length of the hypotenuse?

Accepted Answer

15

Answer

18

Answer

14

Answer

21

Question 2

In right triangle ABC with the right angle at C, sin(A) = 3/5. What is cos(A)?

Accepted Answer

4/5

Answer

3/4

Answer

5/3

Answer

5/4

Question 3

A 30-60-90 triangle has the shortest leg equal to 7. What is the length of the hypotenuse?

Accepted Answer

14

Answer

7√2

Answer

7√3

Answer

21

Question 4

In right triangle PQR with the right angle at R, tan(P) = 5/12. If QR = 5, what is PR?

Accepted Answer

12

Answer

13

Answer

5

Answer

60

Question 5

A ladder leans against a wall, making a 60° angle with the ground. If the ladder is 20 feet long, how high on the wall does it reach?

Accepted Answer

10√3

Answer

10

Answer

20√3

Answer

10√2

Question 6

A 45-45-90 triangle has a hypotenuse of 10√2. What is the length of each leg?

Accepted Answer

10

Answer

5√2

Answer

10√2

Answer

5

Question 7

In right triangle DEF with the right angle at F, DE = 13 and EF = 5. What is sin(E)?

Accepted Answer

12/13

Answer

5/13

Answer

12/5

Answer

5/12