Ex 5.2, 1 - State the property that is used in each statement

Ex 5.2, 1 - Chapter 5 Class 7 Lines and Angles - Part 2
Ex 5.2, 1 - Chapter 5 Class 7 Lines and Angles - Part 3

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Ex 5.2, 1 State the property that is used in each of the following statements? (i) If a ǁ b, then ∠1 = ∠5. If a ∥ b, then by corresponding angles ∠1 = 5 ∴ Property used here is corresponding angle property If a ∥ b, then by corresponding angles ∠1 = 5 ∴ Property used here is corresponding angle property If a ∥ b, then by corresponding angles ∠1 = 5 ∴ Property used here is corresponding angle property Ex 5.2, 1 State the property that is used in each of the following statements? (ii) If ∠4 = ∠6, then a ǁ b. Here, ∠4 & ∠6 are alternate interior angles & they are equal. So, lines must be parallel ∴ line a ∥ b ∴ Property used here is alternate interior angle property Ex 5.2, 1 State the property that is used in each of the following statements? (iii) If ∠4 + ∠5 = 180°, then a ǁ b. For lines a and b with transversal c. ∠4 and ∠5 are interior angles on the same side of the transversal. And their sum is 180° So, lines must be parallel ∴ a ∥ b So, the property used here is interior angles on the same side of transversal are supplementary

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.