Two angles are called adjacent angles if they have a common vertex and a common arm but no common interior points. A linear pair is a pair of adjacent angles whose noncommon sides are opposite rays. When two lines intersect, the vertically opposite angles so formed are equal.
If two parallel lines are intersected by a transversal, (i) each pair of corresponding angles is equal. (ii) each pair of alternate interior angles is equal. (iii) each pair of interior angles on the same side of the transversal is
supplementary..
Lines (Geometry) Practice Test Question Answers
Test Name 
Lines Test Prep 
Type of Question 
Multiple Choice Question Answers 
Subject 
Math 
Total Question 
10 
Test Type 
Sample / Mock Test 
Editable & Printable PDF / Doc 
YES (Download link is given below) 
Available of Answers 
YES 
Difficulty Level 
Elementary Geometry 
Lines (Geometry) Practice Test Question Answers
1. If two lines are intersected by a transversal, then the number of pairs of interior angles on the same side of
the transversal is 
🔘 A. 0 
🔘 B. 1 
🔘 C. 2 
🔘 D. 3 
🔘 E. 4 
2. In the given figure, find out which pair of lines are parallel.

🔘 A. GH  KP 
🔘 B. EF  KP 
🔘 C. AB  CD 
🔘 D. EF  GH. 
🔘 E. NOTA 
Show Answers
Answer:D. EF  GH. [Solution: For lines EF and GH, taking CD as transversal, ∠1 and ∠2
are interior angles on the same side of the transversal. Therefore, we check whether the sum of ∠1 and ∠2 is 180° or
not. ∠1 = 123°, ∠2 = 57°, ∠1 + ∠2 = 123° + 57° = 180° Since the sum of the interior ∠’s on the same side of the
transversal is 180°, therefore EF  GH.
3. In the following lines, l and m intersect each other at a point. Which of the following is false?

🔘 A. ∠a = ∠b 
🔘 B. ∠d = ∠c 
🔘 C. ∠a + ∠d = 180° 
🔘 D. ∠a = ∠d 
🔘 E. NOTA 
Show Answers
Answer:D ∠a = ∠d (Sol ∠a + ∠d = 180°)
4. In the following figure POR is a line. The value of a is

🔘 A. 20° 
🔘 B. 40° 
🔘 C. 60° 
🔘 D. 80° 
🔘 E. 120° 
Show Answers
Answer:B. 40° (Hints: (3a + 5)° + (2a – 25)° = 180°)
5. In the following figure POQ is a line. If x = 30°, then ∠QOR is

🔘 A. 30° 
🔘 B. 60° 
🔘 C. 80° 
🔘 D. 90° 
🔘 E. 110° 
Show Answers
Answer:D. 90°
6. In the following figure, PA  BC  DT and AB  DC. Then, the values of a and b are respectively.

🔘 A. 50°, 130° 
🔘 B. 30°, 120° 
🔘 C. 40°, 90° 
🔘 D. 10°, 110° 
🔘 E. 30°, 90° 
Show Answers
Answer:A 50°, 130° (hints ∠ABC + ∠BCD = 180°)
7. In the following figure, PQ  SR and SP  RQ. Then, angles a and b are respectively

🔘 A. 
🔘 B. 
🔘 C. 
🔘 D. 
🔘 E. 
8. In the following figure, lines AB and CD intersect at O. If ∠ AOC + ∠ BOE = 70° and ∠ BOD = 40°, find ∠ BOE

🔘 A. 30° 
🔘 B. 40° 
🔘 C. 50° 
🔘 D. 60° 
🔘 E. 70° 
Show Answers
Answer:A. 30°
9. In the following figure, lines AB and CD intersect at O. If ∠ AOC + ∠ BOE = 70° and ∠ BOD = 40°, find ∠ COE

🔘 A. 60° 
🔘 B. 90° 
🔘 C. 150° 
🔘 D. 160° 
🔘 E. 250° 
Show Answers
Answer:E 250°
10. In the following figure, lines XY and MN intersect at O. If ∠ POY = 90° and a : b = 2 : 3, find c.

🔘 A. 62° 
🔘 B. 96° 
🔘 C. 126° 
🔘 D. 176° 
🔘 E. 216° 
Show Answers
Answer: C. 126°
Lines Practice Test Question Answers [PDF Worksheet]
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