Bluebook SAT Test Lines, Angles, and Triangles 7

Question 1

In a triangle, angle A = 90° and angle B = 38°. What is angle C?

Accepted Answer

52°

Answer

38°

Answer

42°

Answer

62°

Question 2

Which angle pair is always congruent when two parallel lines are cut by a transversal?

Accepted Answer

Alternate interior angles

Answer

Co-interior angles

Answer

Supplementary angles

Answer

Adjacent angles

Question 3

Isosceles triangle RST has RS = RT and vertex angle R = 100°. What is each base angle?

Accepted Answer

40°

Answer

50°

Answer

80°

Answer

100°

Question 4

Parallel lines are cut by a transversal. The angle at the top-left is 115°. What is the co-interior angle at the bottom-right?

Accepted Answer

65°

Answer

75°

Answer

115°

Answer

180°

Question 5

In similar triangles PQR and STU, angle P = 55° and angle Q = 75°. What is angle U?

Accepted Answer

50°

Answer

55°

Answer

75°

Answer

80°

Question 6

Lines a and b are parallel. An alternate exterior angle at a measures 62°. What is the alternate exterior angle at b?

Accepted Answer

62°

Answer

28°

Answer

118°

Answer

152°

Question 7

Two parallel lines are cut by a transversal. Corresponding angles are (7m − 11)° and (4m + 16)°. What is m?

Accepted Answer

9

Answer

7

Answer

11

Answer

13