Which lines are perpendicular to each other?
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Which lines are perpendicular to each other?
Perpendicular lines are lines that form a right angle of 90 degrees between them.
The only drawing where the lines form a right angle of 90 degrees between them is drawing A.
The lines below are not the same size, but are they parallel?
Look for the small square symbol at the intersection point - this indicates a right angle. The lines should also appear to form four equal angles that look like perfect corners.
All perpendicular lines intersect, but not all intersecting lines are perpendicular! Perpendicular lines are a special case where the intersection creates exactly 90° angles.
Absolutely! Lines don't have to be horizontal and vertical to be perpendicular. As long as they meet at a 90° angle, any two lines can be perpendicular, regardless of their orientation.
Those small squares are right angle markers - they're mathematical symbols that tell you the angle is exactly 90°. Without this symbol, you can't assume lines are perpendicular!
No! Parallel lines never intersect, so they can't form any angle at all. Perpendicular lines must cross each other to create the 90° angle.
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