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Lines And Angles Class 9 MCQ Question 1.
In ΔABC, ∠A = 50° and the external bisectors of ∠B and ∠C meet at O as shown in figure. The measure of ∠BOC is
(a) 40°
(b) 65°
(c) 115°
(d) 140°Answer
Answer: (b) 65°
Class 9 Maths Chapter 6 MCQ Question 2.
In figure the value of x is
(a) 120°
(b) 130°
(c) 110°
(d) 100°Answer
Answer: (b) 130°
Class 9 Lines And Angles MCQ Question 3.
An exterior angle of a triangle is 80° and the interior opposite angles are in the ratio 1 : 3, measure of interior opposite angles are
(a) 30°, 90°
(b) 40°, 120°
(c) 20°, 60°
(d) 30°, 60°Answer
Answer: (c) 20°, 60°
Lines And Angles MCQ Class 9 Question 4.
In ΔABC, the bisectors of ∠ABC and ∠BCA intersect each other at O. The measure of ∠BOC is
(a) 90° + ∠A
(b) 90° + ∠A2
(c) 180 – ∠A
(d) 90° – ∠A2Answer
Answer: (b) 90° + ∠A2
MCQ Of Lines And Angles Class 9 Question 5.
In figure if ∠A + ∠B + ∠C + ∠D + ∠E + ∠F = k right angles, then find value of k.
(а) 2
(b) 3
(c) 4
(d) 5Answer
Answer: (c) 4
Ch 6 Maths Class 9 MCQ Question 6.
In the given figure, the measure of ∠ABC is
(a) 80°
(b) 20°
(c) 100°
(d) 60°Answer
Answer: (a) 80°
MCQ On Lines And Angles Class 9 Question 7.
The angle of a triangle are in the ratio 5 : 3 : 7, the triangle is
(а) an acute-angled triangle
(b) an obtuse angled triangle
(c) an right angled triangle
(d) an isosceles triangle.Answer
Answer: (а) an acute-angled triangle
Class 9 Maths Ch 6 MCQ Question 8.
In figure l1 || l2, the value of x is
(a) 80°
(b) 100°
(c) 110°
(d) 70°Answer
Answer: (a) 80°
Class 9 Maths Lines And Angles MCQ Question 9.
If one angle of triangle is equal to the sum of the other two, then the triangle is
(a) an isosceles triangle
(b) an obtuse-angled triangle
(c) an equilateral triangle
(d) a right triangleAnswer
Answer: (d) a right triangle
Chapter 6 Maths Class 9 MCQ Question 10.
One of the angles of a triangle is 75°. If the difference of other two is 35°, then the largest angle of other two angles has a measure
(a) 80°
(b) 75°
(c) 70°
(d) 135°Answer
Answer: (c) 70°
Lines And Angles Class 9 MCQ With Answers Question 11.
An exterior angle of a triangle is 105° and its two interior opposite angles are equal. Each of these equal angles is
(a) 37 1°2
(b) 52 1°2
(c) 72 1°2
(d) 75°Answer
Answer: (b) 52 1°2
MCQ Lines And Angles Class 9 Question 12.
In Figure measure of ∠ABC is
(a) 60°
(b) 70°
(c) 80°
(d) 50°Answer
Answer: (a) 60°
Maths Class 9 Chapter 6 MCQ Question 13.
In Figure AB || CD, the value of x is
(a) 35°
(b) 40°
(c) 60°
(d) 75°Answer
Answer: (d) 75°
Lines And Angles Class 9 MCQ With Answers Pdf Question 14.
In the figure, PS ⊥ l, RQ ⊥ l, the degree measure of y is
(a) 55°
(b) 90°
(c) 80°
(d) 135°Answer
Answer: (c) 80°
Class 9 Ch 6 Maths MCQ Question 15.
Each angle of an equilateral triangle is
(a) 50°
(b) 90°
(c) 54°
(d) 60°Answer
Answer: (d) 60°
MCQ Questions For Class 9 Maths Lines And Angles Question 16.
Given lines l1 || l2 and l2 || l3 in figure. The value of x is
(a) 40°
(b) 140°
(c) 50°
(d) 80°Answer
Answer: (b) 140°
Class 9 Chapter 6 Maths MCQ Question 17.
In figure, find the value of y.
(a) 28°
(b) 40°
(c) 140°
(d) 56°Answer
Answer: (a) 28°
Class 9th Maths Chapter 6 MCQ Question 18.
In the given figure, if AOB is a straight line, then ∠BOC is
(a) 80°
(b) 70°
(c) 60°
(d) 20°Answer
Answer: (a) 80°
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