Geometry Basics
The angles of a triangle add up to this
What is 180?
the rigid transformations
What is reflection, rotation, and translation?
Corresponding angles measurement
congruent
Triangle sum theorem
interior angles of a triangle add up to 180
sss
Side Side Side
The measure of a straight line
What is 180?
transformation that slides a figure
what is translation?
alternate interior angle measurement
congruent
exterior angle theorem
the exterior angle equals the sum of the non-adjacent interior angles
SAS
side angle side
An angle that is 90 degrees
What is Right Angle ?
transformation that flips a figure
What is reflection?
consecutive interior measurement
triangle inequality theorem
sum of 2 lengths of any 2 sides of triangles must be greater than the 3rd side
ASA
angle side angle
2 angles that measure add up to exactly 180
What is Supplementary?
transformation that turns a figure
what is a rotation?
parallel lines cut by a transversal make what angles
alternate interior, alternate exterior, corresponding, consecutive interior, vertical, linear pair (supplementary)
triangle with 2 congruent sides means the angles opposite them are congruent
Isosceles Triangle Theorem
HL
Hypotenuse Leg
2 angles that measure add up to exactly 90
what is complementary angles?
Transformation changes a figure's size
What is a dilation?
angles that prove lines are parallel
alternate interior, alternate exterior, corresponding, consecutive interior, vertical, linear pair (supplementary)
Pythagorean Theorem
a^2+ b^2=c^2
Proving Congruent Triangles
SSS, SAS,ASA, AAS, HL