How many pairs of perpendicular lines are there in the diagram?
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How many pairs of perpendicular lines are there in the diagram?
Let's remember that perpendicular lines form a right angle of 90 degrees between them.
The right angles we have in the drawing are:
The lines that create the angle FAB are: FA + AB
The lines that create the angle CDE are: CD + DE
Since we have 2 angles marked in the diagram, we therefore also have 2 pairs of perpendicular lines.
2
What do the four figures below have in common?
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