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29 Cards in this Set
- Front
- Back
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What are congruent figures?
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congruent segments (segments with equal lengths)
congruent angles( angles with equal measures) |
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What are the 3 ways to prove a triangle congruent?
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sss (side side side)
sas (side angle side) asa ( angle side angle) |
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Define SSS?
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if three sides of one triangle are congruent to three sides of another triangle
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Define SAS?
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If the side angle side of a triangle are in the same order and equal to another triangle
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Define ASA?
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If the angle side angle of a triangle are in the same order and equal to anonther triangle.
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Draw a triangle and show the following parts: Legs, Base, Base Angles, and Vertex Angles.
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I KNOW IT ^_^
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What is an Hypotenuse?
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In a right triangle... the side oppisite of the right angle.
[ The other two sides are called legs] |
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What is the LL method?
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Leg Leg method -If two legs of one triangle is equal to the other two legs of another triangle the the triangles are congruent.
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What is the HA methond?
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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?
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What is the LA methond?
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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
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What is CPCTC?
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CONGRUENT PARTS OF CONGRUENT TRIANGLES ARE CONGRUENT.
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What is the Median of a triangle?
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A segment the comes from the vertex to the midpoint of the oppisite side.
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What is the Altitude of a triangle?
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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 |
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What is a perpendicular bisector?
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A line the goes from the midpoint of a segment that creates two 90 degree angles.
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What is Postulate 12?
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SSS (side side side)
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What is Postuale 13?
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SAS (Side Angle Side)
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What is Postuale 14?
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ASA (Angle Side Angle)
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What is theorm 4-1?
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If two sides of a triangle are congruent then the two angles are congruent
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What is Corollary 1?
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An equilateral triangle is also equiangular
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What is Corollary 2?
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An equilateral triangle has three 60 degree angles?
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What is Corollary 3?
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The bisector of the vertex angle of an isosceles triangle is perpendicular to the base at its midpoint.
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What is Theorm 4-2?
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If two of a triangle are congruent, then the side opposite those angles are congruent?
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What is Theorems 4-3?
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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.
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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
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Hl is only use for what kind of Triangle?
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Right Triangle
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What is Theorem 4-5?
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If point lies on the perpendicular bisector of a segment, then the point is equidistant from the endpoints of the segment.
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What is Theorem 4-6?
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If a point is equidistant from the endpoints of a segment, then the point lies on the perpendicular bisector of the segments.
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What is Theorem 4-7?
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If a point lies on the bisector of an angle, then the point is equidistant from the sides of the angle.
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What is Theorm 4-8?
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If a point is equidistant from the sides of an angle, then the point lies on the bisector of the angle
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