Which lines are perpendicular to each other?
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Which lines are perpendicular to each other?
Let's remember that perpendicular lines form a 90-degree angle with each other.
To check if the lines form a 90-degree angle, we will draw a T at each intersection as follows:
We notice that in each of the four drawings, the lines form a 90-degree angle.
Therefore all are correct as all the lines are perpendicular to each other.
All answers are correct.
What do the four figures below have in common?
You can't be certain just by looking! Lines might appear perpendicular but actually form 85° or 95° angles. Always use the square test - draw small squares at intersections to verify true right angles.
All perpendicular lines intersect, but not all intersecting lines are perpendicular! Intersecting just means they cross somewhere. Perpendicular means they cross at exactly angles.
Yes! When two lines are perpendicular, they form four right angles at their intersection. Check that all four angles are exactly 90° by drawing squares in each corner.
Absolutely! Perpendicular lines don't have to be horizontal and vertical. As long as they intersect at angles, they're perpendicular - regardless of their orientation.
This means all four line pairs in the diagram are perpendicular to each other! Each intersection shows perfect right angles, so every line is perpendicular to every other line it crosses.
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