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Geometry Formulas

TermDefinition
Slope Formula Rise/Run or (y2 - y1) / (x2 - x1)
Parallel Lines Same slope
Perpendicular Lines Negative reciprocal slopes
Midpoint Formula (x1 + x2 / 2 , y1 + y2 / 2)
Converse Switch
Inverse Negative
Contrapositive Both (Switched and negative)
What does TAN from SOHCAHTOA equal? OPP / ADJ
What does SIN from SOHCAHTOA equal? OPP / HYP
What does COS from SOHCAHTOA equal? ADJ / HYP
Distance Formula d = √ (x2 - x1 )2 + (y2 - y1)2
Sum of all interior angles (n - 2)180
Sum of all exterior angles 360
Each interior angle (n - 2)180n
Each exterior angle 360 / # of sides
Created by: banxan