DISTANCE FORMULA
TWO POINTS · ONE TRIANGLE
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Distance Between Two Points
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Δx =
x₂ − x₁
Δy =
y₂ − y₁
d =
distance
1. Distance Formula
d = √((x₂ − x₁)² + (y₂ − y₁)²)
2. It's Just Pythagoras
Δx and Δy are the two sides of a right triangle
d is the hypotenuse of that triangle: d² = Δx² + Δy²
3. Remember
Distance is never negative
P to Q or Q to P: same answer
MATRIC MATHS · COORDINATE GEOMETRY · PUNJAB BOARDS
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