Bluebook SAT Test Lines, Angles, and Triangles 3

Question 1

A transversal intersects two parallel lines. The co-interior angles are (3x + 10)° and (2x + 30)°. What is x?

Accepted Answer

28

Answer

14

Answer

20

Answer

30

Question 2

The angles of a triangle are in the ratio 2:3:7. What is the measure of the largest angle?

Accepted Answer

105°

Answer

30°

Answer

60°

Answer

90°

Question 3

An exterior angle of a triangle is 140°. One remote interior angle is 80°. What is the other?

Accepted Answer

60°

Answer

40°

Answer

50°

Answer

80°

Question 4

Two lines intersect. Vertical angles are (5x − 10)° and (3x + 30)°. What is x?

Accepted Answer

20

Answer

10

Answer

15

Answer

25

Question 5

An isosceles triangle has base angles of 65° each. What is the vertex angle?

Accepted Answer

50°

Answer

55°

Answer

60°

Answer

65°

Question 6

Parallel lines p and q are cut by a transversal. Alternate interior angles are (4y − 5)° and (2y + 35)°. What is y?

Accepted Answer

20

Answer

10

Answer

15

Answer

25

Question 7

Triangle ABC has AB = 5, BC = 5, AC = 8. Which best describes the triangle?

Accepted Answer

Isosceles

Answer

Equilateral

Answer

Scalene

Answer

Right