Two distinct lines which intersect at each other at 90° are called perpendicular lines. Learn Perpendicular Definition, Solved examples, and Formulas. Make your child a Math Thinker, the Cuemath way. Download FREE Perpendicular Worksheets and more.
Perpendicular - Wikipedia
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Perpendicular Definition: Lines that meet at a 90 degree angle
Perpendicular - Wikipedia
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perpendicular ~ A Maths Dictionary for Kids Quick Reference by