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Chapter 5: Measures of Lines and Angles

    Introduction

    Measuring Line Segments

    Measuring of an Angles

    Intersecting Lines

    Exercise 5.1

    Exercise 5.2

    Exercise 5.3

    What Have We Discussed

    Enhanced Curriculum Support

    Easy Level Worksheet

    Moderate Level Worksheet

    Hard Level Worksheet

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Chapter 5: Measures of Lines and Angles > Exercise 5.3

Exercise 5.3

1.Which of the following are models for parallel lines, perpendicular lines and which are neither of them.

Vertical window bars
Railway tracks
Adjacent edges of a door
Letter 'V'
Opposite edges of a blackboard
Parallel
Perpendicular
Neither

3. ABCD is a rectangle. AC and BD are diagonals. Write the pairs of parallel lines, perpendicular lines from the figure in symbolic form. Also, write pairs of intersecting lines.

Answer:

(a) Parallel lines : AB || , AD || .

(b) Perpendicular lines : AD ⊥ , AD ⊥ , BC ⊥ , BC ⊥ .

(c) Pair of intersecting lines : , .