# CBSE Class 9 Mathematics/Lines and Angles / MCQ

**CBSE Class 9 Mathematics/Lines and Angles/MCQ is about the multiple choice questions that you can expect for yearly examination. Here you can find out practice problems for Class 9 Mathematics from the chapter 6 – Lines and Angles.**

**CBSE Class 9 Mathematics/ Lines and Angles – Chapter 6/ MCQMultiple Choice Questions/ Extra Questions for PracticeChoose the correct answer from the options given below:**

**A part of a line with two end points is called a ———–**

A. Line

B. Line Segment

C. Ray**A part of a line with one end point is called a ——-**

A. Line

B. Line Segment

C. Ray**If three or more points lie on the same line, they are called ———-**

A. Similar points

B. Collinear points

C. Intersecting points**The rays making angles are called the —– of the angle.**

A. Measure

B. Degree

C. Arms**Two angles whose sum is 90 degree are called ————-**

A. Complementary angles

B. Supplementary angles

C. Right angles**If the sum of two adjacent angles is 180 degree, then they form a ———– angles.**

A. Vertically opposite angles

B. Corresponding angles

C. Linear pair of angles**Complement of an angle x is ————-**

A. 90

B. 90 – x

C. 90 + x**Supplement of an angle x is ———-**

A. 180

B. 180 – x

C. 180 + x**If the supplement of an angle is 4 times its complement, then the measure of the angle is ——–**

A. 30 degree

B. 60 degree

C. 90 degree**An angle which is equal to its complement is ———-**

A. 45 degree

B. 60 degree

C. 90 degree**An angle which is equal to its supplement is ————**

A. 45 degree

B. 90 degree

C. 180 degree**A line which intersects two or more lines at distinct points is called a ————–**

A. Transversal

B. Parallel line

C. Intersecting line**In triangle PQR, <P = 45, <Q = 90, find <R?**

A. 45

B. 135

C. 90**If a side of a triangle is produced then the exterior angle so formed is equal to the sum of the —–Interior opposite angles.**

A. One

B. Two

C. Three**Which of the following is a false statement?**

A. Each pair of corresponding angles is equal.

B. Each pair of alternate interior angles is equal.

C. Each pair of interior angles on the same side of the transversal is equal.

**ANSWERS:**

- Line Segment
- Ray
- Collinear Points
- Arms
- Complementary angles
- Linear pair of angles
- 90 – x
- 180 – x
- 60 degree

[Given 180 – x = 4(90 – x)

180 – x = 360 – 4x

360 – 180 = -x + 4x

180 = 3x

x = 180/3 = 60] - 45 degree
- 90 degree
- Transversal
- 45
- Two
- Each pair of interior angles on the same side of the transversal is equal.