X and T because the they can still make the T shape and still be perpendicular
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The letters T and L are formed as asked.l and t from fiona1234
When two perpendicular lines cross, a right angle is formed.
No. Perpendicular lines for right angles. That is why they are called perpendicular.
If the angle formed between the intersecting lines are 90o then the two lines are perpendicular. In 2D coordinate geometry, a perpendicular line has a slope equal to the negative reciprocal of the original line.
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