Students can access the NCERT MCQ Questions for Class 9 Maths Chapter 6 Lines and Angles with Answers Pdf free download aids in your exam preparation and you can get a good hold of the chapter. Use MCQ Questions for Class 9 Maths with Answers during preparation and score maximum marks in the exam. Students can download the Lines and Angles Class 9 MCQs Questions with Answers from here and test their problem-solving skills. Clear all the fundamentals and prepare thoroughly for the exam taking help from Class 9 Maths Chapter 6 Lines and Angles Objective Questions.
Lines and Angles Class 9 MCQs Questions with Answers
Students are advised to solve the Lines and Angles Multiple Choice Questions of Class 9 Maths to know different concepts. Practicing the MCQ Questions on Lines and Angles Class 9 with answers will boost your confidence thereby helping you score well in the exam.
Explore numerous MCQ Questions of Lines and Angles Class 9 with answers provided with detailed solutions by looking below.
Question 1.
In a right-angled triangle where angle A = 90° and AB = AC. What are the values of angle B?
(a) 45°
(b) 35°
(c) 75°
(d) 65°
Answer
Answer: (a) 45°
Question 2.
In a triangle ABC if ∠A = 53° and ∠C = 44° then the value of ∠B is:
(a) 46°
(b) 83°
(c) 93°
(d) 73°
Answer
Answer: (b) 83°
Question 3.
Given four points such that no three of them are collinear, then the number of lines that can be drawn through them are:
(a) 4 lines
(b) 8 lines
(c) 6 lines
(d) 2 lines
Answer
Answer: (c) 6 lines
Question 4.
If one angle of triangle is equal to the sum of the other two angles then triangle is :
(a) Acute triangle
(b) Obtuse triangle
(c) Right triangle
(d) None of these
Answer
Answer: (c) Right triangle
Question 5.
How many degrees are there in an angle which equals one-fifth of its supplement?
(a) 15°
(b) 30°
(c) 75°
(d) 150°
Answer
Answer: (b) 30°
Question 6.
Sum of the measure of an angle and its vertically opposite angle is always.
(a) Zero
(b) Thrice the measure of the original angle
(c) Double the measure of the original angle
(d) Equal to the measure of the original angle
Answer
Answer: (c) Double the measure of the original angle
Question 7.
If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.
(a) Equal
(b) Complementary
(c) Supplementary
(d) corresponding
Answer
Answer: (d) corresponding
Question 8.
The bisectors of the base angles of an isosceles triangle ABC, with AB = AC, meet at O. If ∠B = ∠C = 50°. What is the measure of angle O?
(a) 120°
(b) 130°
(c) 80°
(d) 150°
Answer
Answer: (b) 130°
Question 9.
The angles of a triangle are in the ratio 2 : 3 : 4. The angles, in order, are :
(a) 80°, 40°, 60°
(b) 20°, 60°, 80°
(c) 40°, 60°, 80°
(d) 60°, 40°, 80°
Answer
Answer: (c) 40°, 60°, 80°
Question 10.
An acute angle is:
(a) More than 90 degrees
(b) Less than 90 degrees
(c) Equal to 90 degrees
(d) Equal to 180 degrees
Answer
Answer: (b) Less than 90 degrees
Question 11.
Two parallel lines intersect at:
(a) One point
(b) Two points
(c) Three points
(d) Null
Answer
Answer: (d) Null
Question 12.
The angle between the bisectors of two adjacent supplementary angles is :
(a) Acute angle
(b) Right angle
(c) Obtuse angle
(d) None of these
Answer
Answer: (b) Right angle
Question 13.
Which of the following statements is false?
(a) A line can be produced to any desired length.
(b) Through a given point, only one straight line can be drawn.
(c) Through two given points, it is possible to draw one and only one straight line
(d) Two straight lines can intersect in only one point
Answer
Answer: (b) Through a given point, only one straight line can be drawn.
Question 14.
Two parallel lines have:
(a) A common point
(b) Two common points
(c) No common point
(d) Infinite common points
Answer
Answer: (c) No common point
Question 15.
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) Two
(b) Four
(c) One
(d) Three
Answer
Answer: (a) Two
Question 16.
If two straight lines are perpendicular to a line l, then they are.
(a) The lines intersect each other when extended
(b) Parallel to each other
(c) The angle between the two lines is 180°
(d) Perpendicular to each other
Answer
Answer: (b) Parallel to each other
Question 17.
Two angles whose measures are a & b are such that 2a – 3b = 60° then 5b = ?, if they form a linear pair:
(a) 120°
(b) 300°
(c) 60°
(d) None of these
Answer
Answer: (b) 300°
Question 18.
An angle is 14° more than its complementary angle, then angle is :
(a) 38°
(b) 52°
(c) 50°
(d) None of these
Answer
Answer: (b) 52°
Question 19.
Find the measure of the angle which is complement of itself.
(a) 30°
(b) 90°
(c) 45°
(d) 180°
Answer
Answer: (c) 45°
Question 20.
X lies in the interior of ∠BAC. If ∠BAC = 70° and ∠BAX = 42° then ∠XAC =?
(a) 28°
(b) 29°
(c) 27°
(d) 30°
Answer
Answer: (a) 28°
Question 21.
Two lines are parallel to each other, only when
(a) They do not intersect each other when extended on either side
(b) The lines lie on the same plane
(c) They are parallel to the plane in which they lie
(d) Their point of intersection is a unique point
Answer
Answer: (a) They do not intersect each other when extended on either side
Question 22.
If two lines intersect each other, then the vertically opposite angles are:
(a) Equal
(b) Unequal
(c) Cannot be determined
(d) None of the above
Answer
Answer: (a) Equal
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