Search
Create
Log in
Sign up
Log in
Sign up
Geometry Honor Finals Formulas
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Terms in this set (15)
Midsegment Theorem
Midsegment = 1/2Base
Concurrency of Median of a Triangle
AB= 2/3AC
AA Similarity Postulate
Angle A = Angle D and Angle B = Angle E then Triangle ABC = Triangle DEF
SSS Similarity Postulate
If AB/DE = BC/EF = AC/DF then Triangle ABC = Triangle DEF
SAS Similarity Postulate
If Angle A = Angle D and AB/DE = AC/DF then Triangle ABC = Triangle DEF
Pythagorean Theorum
c2 = a2 + b2
Geometric Mean (Altitude)
(With triangle ABC and right triangle ACD) BD/CD = CD/AD
Geometric Mean (Leg)
(With triangle ABC and right triangle ACD) AB/AC = AC/AD
45-45-90 Triangle
Hypotenuse = leg x square root 2
36-60-90 Triangle
Hypotenuse = smaller leg x 2
Longer leg = smaller leg x square root 3
Tangent
Tan = Length of leg opposite angle/Length of leg adjacent to angle
Sine
Sin = Length of leg opposite/Length of hypotenuse
Cosine
Cos = Length of leg adjacent to angle/Length of hypotenuse
Polygon Interior Angle Theorem
measure of all angle = (n - 2) x 180
Measure of an Inscribed Angle Theorem
Angle ADB = 1/2 arcAB
;