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29 Cards in this Set

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What are congruent figures?
congruent segments (segments with equal lengths)
congruent angles( angles with equal measures)
What are the 3 ways to prove a triangle congruent?
sss (side side side)
sas (side angle side)
asa ( angle side angle)
Define SSS?
if three sides of one triangle are congruent to three sides of another triangle
Define SAS?
If the side angle side of a triangle are in the same order and equal to another triangle
Define ASA?
If the angle side angle of a triangle are in the same order and equal to anonther triangle.
Draw a triangle and show the following parts: Legs, Base, Base Angles, and Vertex Angles.
I KNOW IT ^_^
What is an Hypotenuse?
In a right triangle... the side oppisite of the right angle.
[ The other two sides are called legs]
What is the LL method?
Leg Leg method -If two legs of one triangle is equal to the other two legs of another triangle the the triangles are congruent.
What is the HA methond?
Hypotenuse-Acute Angle Method - If the hypotenuse and acute angle of one triangle is equal to the hypotnuse and acute angle of another triangle then the triangles are congruent?
What is the LA methond?
Leg-Acute Method- If the leg and acute angle is equal to the leg and acute angle of another triangle then the triangles are congruent
What is CPCTC?
CONGRUENT PARTS OF CONGRUENT TRIANGLES ARE CONGRUENT.
What is the Median of a triangle?
A segment the comes from the vertex to the midpoint of the oppisite side.
What is the Altitude of a triangle?
Is the perpendicular segment from the vertex to the line that contains the oppsite side.

[An acute triangle has 3 inside]

Creates a 90 degree angle
What is a perpendicular bisector?
A line the goes from the midpoint of a segment that creates two 90 degree angles.
What is Postulate 12?
SSS (side side side)
What is Postuale 13?
SAS (Side Angle Side)
What is Postuale 14?
ASA (Angle Side Angle)
What is theorm 4-1?
If two sides of a triangle are congruent then the two angles are congruent
What is Corollary 1?
An equilateral triangle is also equiangular
What is Corollary 2?
An equilateral triangle has three 60 degree angles?
What is Corollary 3?
The bisector of the vertex angle of an isosceles triangle is perpendicular to the base at its midpoint.
What is Theorm 4-2?
If two of a triangle are congruent, then the side opposite those angles are congruent?
What is Theorems 4-3?
If two angles and a non-included side of one triangle are congruent to the corres. parts of another triangle, then the triangles are congruent.
What is Theorem 4-4?
(HL)
If the hypotenuse and a leg of one rigt triangle are congruent to the corres. parts of another right triangle, then the triangles are congruent
Hl is only use for what kind of Triangle?
Right Triangle
What is Theorem 4-5?
If point lies on the perpendicular bisector of a segment, then the point is equidistant from the endpoints of the segment.
What is Theorem 4-6?
If a point is equidistant from the endpoints of a segment, then the point lies on the perpendicular bisector of the segments.
What is Theorem 4-7?
If a point lies on the bisector of an angle, then the point is equidistant from the sides of the angle.
What is Theorm 4-8?
If a point is equidistant from the sides of an angle, then the point lies on the bisector of the angle