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Question
Check your text book and How many pairs of its edges are perpendicular to each other?
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Solution
Three at each corner = 24
RELATED QUESTIONS
The shaded region of the given figure shows a plane:
(i) Name the three collinear points.
(ii) Name the three non-collinear points.
(iii) Name a pair of intersecting lines.
Mark two points A and B on a page of your exercise book. Mark a third point P, such that:
P does not lie between A and B yet the three points are collinear.
Mark two points P and Q on a piece of paper. How many lines can you draw the passing through point P?
Using the given figure, answer the following:
Is the line p parallel to the line l?

Place a scale (ruler) on a sheet of paper and hold it firmly with one hand. Now draw two line segments AB and CD along the longer edges of the scale. State whether segment AB is parallel to or perpendicular to segment CD.
State true or false; if false, give the correct statement:
The maximum number of lines through three collinear points is three.
State true or false; if false, give the correct statement:
Concurrent lines always meet at the same point.
State true or false; if false, give the correct statement:
There are an infinite number of points in a line.
Mark two points A and B on a plain sheet “ of paper. Using a sharp pencil and a ruler, draw a line through points A and B. Try to draw one more line through A and B. What do you observe?
Write a statement regarding your observations.
A line through two end points ‘A’ and ‘B’ is denoted by ______________
