Questions & Answers: "Lines and Angles"
Complete guide to "Lines and Angles" for Math students. Below you will find important questions and model answers to help you prepare.
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We are building a dedicated quiz for this topic, but you can test your skills on a similar concept: Number Systems - Practice Set 1 (NCERT Class 9).
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9 QuestionsIf two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2:3, then the greater of the two angles is
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54°
108°
120°
136°
If one angle of a triangle is equal to the sum of the other two angles, then the triangle is
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an isosceles triangle
an obtuse triangle
an equilateral triangle
a right triangle
An exterior angle of a triangle is 105° and its two interior opposite angles are equal. Each of these equal angles is
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37.5°
52.5°
72.5°
75°
The angles of a triangle are in the ratio 5:3:7. The triangle is
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an acute angled triangle
an obtuse angled triangle
a right triangle
an isosceles triangle
If one of the angles of a triangle is 130°, then the angle between the bisectors of the other two angles can be
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50°
65°
145°
155°
Angles of a triangle are in the ratio 2:4:3. The smallest angle of the triangle is
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60°
40°
80°
20°
In the following figure, if OP||RS, ∠OPQ = 110° and ∠QRS = 130°, then ∠ PQR is equal to
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40°
50°
60°
70°
In following figure, if AB || CD || EF, PQ || RS, ∠RQD = 25° and ∠CQP = 60°, then ∠QRS is equal to
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85°
135°
145°
110°