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Activity 4 (Page 117)
Last updated at July 24, 2025 by Teachoo
Class 7 (Ganita Prakash & Old NCERT)
Chapter 5 Class 7 - Parallel and Intersecting Lines (Ganita Prakash)
- Intersecting Lines
- Parallel and Perpendicular lines
- Between lines
- Parallel and Perpendicular lines in Paper Folding
- Figure it out - Page 113, 114
- Transversals
-
Corresponding Angles
- Alternate Angles
- Interior angle on Same side of Transversal
- Drawing Parallel Lines
- Parallel Illusions
- Figure it out - Page 123, 124, 125
Transcript
Activity 4 (Page 117) Fig. 5.19 has a pair of parallel lines l and m. Line t is the transversal across these two lines. ∠a and ∠b are corresponding angles. Check if ∠ a & ∠ b are equal. Check the other corresponding angles in the figure using a protractor. Are all the corresponding angles equal to each other? Here, ∠ a & ∠ b are equal because lines l & m are parallel And corresponding angles are equal if lines are parallel But, if lines are not parallel, then correspoinding angles are not equal Example: In the figure, ∠ 1 & ∠ 2 are corresponding angles But they are not equal, because lines p & q are not parallel
