Parallel & Perpendicular Lines - GCSE Maths

Lines that are perpendicular intersect to form a 90∘ 90 ∘ angle The slope of one line is the negative reciprocal of the other We can show that two lines are

Perpendicular Lines Theorem If two lines intersect to form a linear pair of congruent angles, then the lines are perpendicular line Proof:

perpendicular Perpendicular lines are represented using the symbol, '⊥' If lines l and m are perpendicular to each other, they intersect each other at

perpendicular If two lines are perpendicular, then their slopes are negative reciprocals Perpendicular lines Explanation 🔇︎