Lines and Angles MCQ Questions Class 7 Maths Chapter 5
NCERT MCQ Questions for Class 7 Maths Chapter 5 Lines and Angles. Lines and Angles MCQ Questions with Answers from Class 7 Maths
Lines and Angles MCQ Questions Class 7 Maths Chapter 5
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Chapter – 5
Lines and Angles
Question 1:
Find the complementary angle of following angle?
Ans:
(d) ∠ 45°
When the sum of measures of two angle is 90°, the angle are called is complementary angle.
Question 2:
Find the supplementary angle of the following angle?
Ans:
(b) ∠ 108°
The sum of the measure of two angle is 180°, the angle are called supplementary angle.
Question 3:
What will be the measure of the supplementary of each one of the following angles? 125°
(a) 55°
(b) 65°
(c) 75°
(d) 45°
Ans:
(a) 55°
Supplementary angle = 180°
125° + other one = 180°
The other angle = 55° = 180° – 125°
Question 4:
What will be the measure of the complement of each one of the following angles? 78°
(a) 22
(b) 12°
(c) 32°
(d) 42°
Ans:
(b) 12°
Complementary angle = 78° + other one = 90°
Other one = 90° – 78°
= 12°
Question 5:
From the following figure give the answer of questions.
Which angle is adjacent angle?
(a) ∠DOF and ∠AOB
(b) ∠AOB and ∠BOC
(c) ∠DOA and ∠BOC
(d) ∠ DOF and ∠BOC
Ans:
(b) ∠AOB and ∠BOC
Adjacent angles have common vertex and a common arm but no common interior points.
Question 6:
Check which of the following pairs of angles form a linear pair (from the above fig)
(a) ∠AOB and ∠BOC
(b) ∠DOE and ∠AOD
(c) ∠AOC and ∠DOE
(d) ∠AOE and ∠AOC
Ans:
(d) ∠AOE and ∠AOC,
The angle are in linear pair are supplementary means sum of two angle have 180° and adjacent also.
Question 7:
Give an example for vertically opposite angles from above figure.
(a) ∠AOD and ∠FOC
(b) ∠AOB and ∠DOE
(c) ∠DOE and ∠COF
(d) ∠AOD and ∠AOB
Ans:
(c) ∠DOE and ∠COF, when two lines intersect, vertically opposite angles so formed are equal.
- In case you have missed:- Previous Chapter MCQ Questions
Question 8:
Find the angles which is equal to its supplement?
(a) 90°
(b) 108°
(c) 45°
(d) 180°
Ans:
(a) 90°,
These angle which is equal to its supplement 90°+90° = 180°
Question 9:
Identify which of the following pairs of angles are complementary.
(a) 72° and 22°
(b) 78° and 18°
(c) 65° and 25°
(d) 68° and 45°
Ans:
(b) 65° and 28° complementary angle sum, is 90°
Question 10:
Give the answer of following question ∠AOB?
(a) 65°
(b) 55°
(c) 75°
(d) 45°
Ans:
(b) 55°, ∠AOC is right angle and ∠BOC and ∠AOB are bisect by ray B.
∠AOB + ∠BOC = ∠AOC
∠AOB + 35° = 90°
∠AOB = 55°
Question 11
Find the ∠FOE =?
(a) 65°
(b) 55°
(c) 45°
(d) 35°
Ans:
(d) 35°, ∠BOC = 35° ∠BOC and ∠FOE are vertically opposite angle and they are same ∠FOE = 35°
Question 12
Find the ∠COD =?
(a) 65°
(b) 90°
(c) 70°
(d) 35°
Ans:
(b) 90°
∠COD is right angle it means that ∠COD equals to 90°
Question 13:
From the figure give the answers of following of questions.
Which is the transversal line?
(a) EP
(b) GF
(c) OQ
(d) GQ
Ans:
(a) EP, A line that intersects two or more lines at distinct points is called transversal.
Question 14:
Which is the example of alternate interior angle?
(a) ∠3 and ∠6
(b) ∠1 and ∠2
(c) ∠7 and ∠8
(d) ∠5 and ∠6
Ans:
(a) ∠3 and ∠6
* Alternate interior angles have different verticals.
* Are on opposite sides of the transversal
* Lie between the two lines
Question 15:
From the above figure if ∠4 = 126°
Then find the angle ∠6 =?
(a) 54°
(b) 44°
(c) 64°
(d) 74°
Ans:
(a) 54°
∠4 + ∠6 = 180°
Each pair of interior angles on the same side of transversal are supplementary
∠4 + ∠6 = 180°
126° + ∠6 = 180°
∠6 = 180° – 126°
∠6 = 54°
- In case you have missed:- Next Chapter MCQ Questions
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