Lines and Angles
9th Class - CBSE - Mathematics - 1612 Questions - 5 Concepts
6
All Concepts
Important Questions
Q1
Single Correct
Medium
What is the value of $$a-b$$
- A. $$180^0$$
- B. $$60^0$$
- C. $$70^0$$
- D. $$120^0$$
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q2
Single Correct
Medium
As shown in above figure which of the following angles are equal
- A. $$\angle1$$ and $$\angle2$$
- B. $$\angle1$$ and $$\angle3$$
- C. $$\angle1$$ and $$\angle4$$
- D. None of the above
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q3
TRUE/FALSE
Medium
Pair of vertically opposite angles are always supplementary
- A. True
- B. False
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q4
TRUE/FALSE
Medium
Vertically opposite angles are both same type of angles.(either acute, obtuse or right angles.)
- A. True
- B. False
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q5
Single Correct
Medium
Vertically opposite angles are always
- A. supplementary
- B. complementary
- C. adjacent
- D. equal
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q6
Single Correct
Medium
In the given figure, two straight lines $$AB$$ and $$CD$$ intersect at a point $$O$$ and $$\angle AOC$$ = $$50^{o}$$. Then $$\angle BOD$$ = ?
- A. $$40^{o}$$
- B. $$50^{o}$$
- C. $$130^{o}$$
- D. $$60^{o}$$
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q7
Assertion & Reason
Medium
ASSERTION
If two lines intersect, then the vertically opposite angles are equal.
REASON
If a transversal intersects, two other parallel lines, then the sum of two interior angles on the same side of the transversal is $$180^o$$.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Both Assertion and Reason are incorrect
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q8
Subjective
Medium
In questions $$ 1 $$ and $$ 2, $$ given below, identify the given pairs of angles as corresponding angles, interior alternate angles, exterior alternate angles, adjacent angles, vertically opposite angles or allied angles:
$$ \angle 4 \quad and \quad \angle 7 $$
$$ \angle 4 \quad and \quad \angle 7 $$
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q9
Single Correct
Medium
In figure, lines $$l$$ and $$m$$ intersect each other at a point. Which of the following is false?
- A. $$\angle a= \angle b$$
- B. $$\angle d =\angle c$$
- C. $$\angle a+ \angle d=180^o$$
- D. $$\angle a=\angle d$$
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Q10
Multiple Correct
Medium
If $$\angle 2=(3x-10)^o$$ and $$\angle 8=(5x-30)^o$$, find the measures of $$\angle 2$$ and $$\angle 8$$.
- A. $$\angle 2=20^o$$
- B. $$ \angle 8=20^o$$
- C. $$\angle 2=40^o$$
- D. $$\angle 8=40^o$$
Asked in: Mathematics - Lines and Angles
1 Verified Answer | Published on 09th 09, 2020
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Questions
120431
Subjects
10
Chapters
88
Enrolled Students
151
