Lines and Angles Class 7 Worksheet Maths Chapter 6
Ques 1: (a) Complementary angle of 65° is .......................
(b) Supplementary angle of 45° is .........................
(c) If line AB||CD and LM is transversal, sum of two interior angles on the same side of transversal is equal to ......................
(d) An angle is formed by the intersection of ...........................
View AnswerAns: (a) 25°
(b) 135°
(c) 180°
(d) Two lines or two surfaces
Ques 2: In the figure, identify the pairs of corresponding angles.
View AnswerAns: ∠1 & ∠ 5, ∠2 & ∠6, ∠4 & ∠8, ∠3 & ∠7
Ques 3: An angle is greater than 45°. Its complement will be:
(a) Less than 45°
(b) Equal to 45°
(c) Greater than 45°
(d) None of these
View AnswerAns: (a)
Ques 4: State true of false:
(a) If measure fo an angle is 90° then its supplement angle will be greater than 90°.
(b) Two obtuse angles form a linear pair.
(c) Two acute angles form a linear pair.
(d) If two adjacent angles are complementary they form a right angle.
View AnswerAns: (a) False
(b) False
(c) False
(d) True
Ques 5: In the figure, the arms of two angles are parallel.
If ∠PQR = 70°, then find
(i) ∠LGR
(ii) ∠LMN
View AnswerAns: (i) ∠LGR = 70°
(ii) ∠LMN = 70°
Ques 6: Indicate two pairs of angles which are:
(i) Vertically opposite angles
(ii) Linear pairs
View AnswerAns. (i) ∠a & ∠d
(ii) ∠a & ∠e, ∠e & ∠d
Ques 7: In the following figure, is ∠x is adjacent to ∠y?
Give reason.
View AnswerAns: No. because vertex is not common
Ques 8: Find the angle:
(i) Which is equal to its complement.
(ii) Which is equal to its supplement.
View AnswerAns. (i) 45°
(ii) 90°
Ques 9: In the given figure, decide a is parallel to b:
(i)
(ii)
(iii)
View AnswerAns. (i) Yes
(ii) No
(iii) Yes
Ques 11: State the property that is used in each of the following statements:
(i) If l || m, then ∠4 = ∠8
(ii) If ∠1 = ∠7, then l || m
(iii) If ∠3 + ∠8 = 180°, then l||m
View AnswerAns. (i) Correspondign angles
(ii) Corresponding & vertically opposite angles
(iii) Linear Pair
Ques 11: Find the value of y in each of the following figure if a || b:
(i)
(ii)
(iii)
View AnswerAns: (i) y = 60°
(ii) y = 60°
(iii) y = 130°
Ques 12: In the following figure name the following pairs of angles:
(i) Obtuse vertically opposite angles.
(ii) Adjacent complement angles.
(iii) Euqal supplementary angles.
(iv) Unequal supplementary angles.
(v) Adjacement angles that do not form a linear pair.
View AnswerAns. (i) ∠POS & ∠QOR
(ii) ∠QOP & ∠POT
(iii) ∠QOT & ∠TOS
(iv) ∠POQ & ∠QOR, ∠POQ & ∠POS
(v) ∠TOS & ∠SOR, ∠POQ & ∠POT, ∠POT & ∠TOS
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Dec 22, 2024 Last updated |
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