CBSE students can refer to NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Ex 5.2 Textbook Questions and Answers are provided by experts in order to help students secure good marks in exams.
Class 7 Maths NCERT Solutions Chapter 5 Lines and Angles Ex 5.2
Ex 5.2 Class 7 Maths Question 1.
State the property that is used in each of the following statements?
Solution:
(i) If two parallel lines are cut by a transversal then the pair of corresponding angles have equal measure.
(ii) If two parallel lines are cut by a transversal then the pairs of alternate interior angles are equal.
(iii) If two parallel lines are cut by a transversal, then the pairs of interior angles on the same side of the transversal are supplementary.
Ex 5.2 Class 7 Maths Question 2.
In the adjoining figure, identity:
- the pairs of corresponding angles.
- the pairs of alternate interior angles.
- the pairs of interior angles on the same side of the transversal.
- the vertically opposite angles
Solution:
- ∠ 1 and ∠ 5, ∠ 2 and ∠6, ∠4 and ∠8, ∠3 and ∠7
- ∠ 3 and ∠ 5, ∠ 2 and ∠8
- ∠ 3 and ∠ 8, ∠ 2 and ∠5
- ∠ 1, ∠ 3, ∠ 2, ∠ 4, ∠ 5, ∠ 7, ∠ 6 and ∠8
Ex 5.2 Class 7 Maths Question 3.
In the adjoining figure p || q. Find the unknown angles
Solution:
Ex 5.2 Class 7 Maths Question 4.
Find the value of x in each of the following figures if l || m :
Solution:
(i) Since, l || m and t is a transversal.
∴ ∠x = (180° – 110°) = 70° [Corresponding angles, Linear pair]
(ii) if l || m and a is a transversal.
Then, ∠x = 1000 [Corresponding angles]
Ex 5.2 Class 7 Maths Question 5.
In the given figure, the arms of the two angles are parallel. If ∠ABC = 70°, then find
(i) DGC
(ii) DEF
Solution:
Ex 5.2 Class 7 Maths Question 6.
In the given figures below, decide whether l is parallel to m.
Solution:
We hope the NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles help you. If you have any query regarding NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles, drop a comment below and we will get back to you at the earliest.