NCERT Std 7 maths exercise 5.2

Lines and Angles Exercise 5.2 1). State the property that is used in each of the following statements? (i) If a || b, then ∠1 = ∠5. (ii) If ∠4 = ∠6, then a || b. (iii) If ∠4 + ∠5 = 180°, then a || b. Answer: (i) If a || b, then ∠1 = […]