Define Perpendicular Lines.
Answer – Perpendicular lines are two straight lines that intersect at a right angle (90°).
Explanation:
The term “perpendicular” originated from the Latin word perpendicularis, which means a plumb line (a tool consisting of a string with a weight at the end).
In geometry, perpendicular lines are represented by the symbol ⊥. Perpendicularity is symmetric, i.e., if one line (L1) is perpendicular to another line (L2), then L2 is also perpendicular to L1. Below is an image showing two perpendicular lines: AB and CD.
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