Question Paper
Class / Subject: Class 9 (CBSE) · Mathematics
Chapter: Chapter 6 — Chapter 6: Lines and Angles
Time Allowed: 15 minutes
Max Marks: 6
1. Two angles forming a linear pair add up to: [1]
(A) 180°
(B) 90°
(C) 360°
(D) 270°
2. Vertically opposite angles, formed by two intersecting lines, are: [1]
(A) always equal
(B) always supplementary
(C) always 90°
(D) always different
3. If one angle in a linear pair is 65°, the other angle is: [1]
(A) 115°
(B) 65°
(C) 180°
(D) 25°
4. Alternate interior angles formed by a transversal on parallel lines are: [1]
(A) equal
(B) supplementary
(C) always 90°
(D) always different
5. Co-interior angles formed by a transversal on parallel lines are: [1]
(A) supplementary (sum to 180°)
(B) always equal
(C) always 90°
(D) always 0°
6. If corresponding angles formed by a transversal are equal, this proves: [1]
(A) the two lines are parallel
(B) the two lines are perpendicular
(C) the transversal is vertical
(D) nothing about the lines