Dr. Sanjeev Verma and R.K. Tyagi Solutions for Chapter: Understanding Elementary Shapes, Exercise 1: ASSIGNMENT 6.1

The adjoining figure represents a box.
Answer the following questions:
Are the planes $ABCD$  and $ABEF$  parallel?

Name the pairs of line segments which are parallel in each figure given below:

Name the pairs of line segments which are parallel in each figure given below:

Name the pairs of perpendicular lines in the following diagrams:

Name the pairs of perpendicular lines in the following diagrams:

If lines$l \left|\right| m \left|\right| n$, what can you say about the lines $l$ and $n$?

How many perpendicular lines are there in the capital letter ' $E$ '?
 

In the figure, line segments AB and CD do not intersect each other. Can you say that they are parallel? Give reasons.