NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.2

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NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.2 is provided in the pdf format in the article below. Exercise 5.2 is based on the broad concept of pairs of lines. The exercise 5.2 discusses the intersecting lines, transversals, angles made by transversals, and transverse of parallel lines

While attempting questions from exercise 5.2 of Chapter 5 Lines and Angles, students should note that when two parallel lines are cut by a transversal:

  • Each pair of corresponding angles is equal.
  • Each pair of alternate interior angles are equal.
  • Each pair of interior angles on the same side of the transversal are supplementary

Download PDF: NCERT Solutions for Class 7 Maths Chapter 5 Exercise 5.2

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Example From Class 7 Chapter 5 Lines and Angles

Ques. In the figure below, l ∥ m, ∠1=550. Determine ∠5, ∠6, and ∠7.

 ∥ m, ∠1=550. Determine ∠5, ∠6, and ∠7

Ans.

From the figure,

∠1=∠5 ……… pair of corresponding angles

Therefore, 

∠1=∠5=550

∠5=∠7 ………vertically opposite angles

Therefore, 

∠5=∠7=550

Now, 

∠6 and ∠7 are linear pair of angles. Thus,

∠6 + ∠7= 1800

∠6 + 550=1800

Therefore, 

∠6=1800 - 550

∠6= 1250

Therefore, 

∠5 =∠7 = 550 and ∠6 = 1250

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