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Advanced Geometry - Congruent Triangles
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Terms in this set (22)
acute triangle
all angles of the triangle are less than 90 degrees
base angles
The angles opposite the congruent sides of an isosceles triangle.
congruent triangles
triangles that have their corrosponding parts congruent
corollary
a statement that can easly be proved from a theorem
equiangular triangle
a triangle with all angles congruent
equilateral triangle
a triangle with all 3 sides congruent
exterior angle
an angle fomed by one side of a triangle and the extension of another side
isosceles triangle
a triangle with at least two sides congruent
obtuse triangle
a triangle with one obtuse angle (more than 90 degrees)
remote interior angles
the angles of a triangle that are not adjacent to a given exterior angle
right triangle
a triangle with one right angle
scalene triangle
a triangle with no sides congruent
180 degrees
the sum of the measures of the angles in a triangle is____________
then the 3rd angles are also congruent
if two angles of one triangle are congruent to two angles of a second triangle then ___________________
the sum of the two remote interior angles
the measure of an exterior angle of a triangle is equal to_____________
the acute angles of a right triangle are___________________________
complimentary
obtuse right
there can be at most one_____or____angle in a triangle
congruent
if two sides of a triangle are congruent then the angles opposite those sides are_________________
a triangle is equilateral if and only if it is __________________________
equiangular
60 degrees
each angle of an equilateral triangle measures_____________________
what are the 5 ways that we discussed to prove triangles are congruent ?
ASA, SAS, SSS, AAS, HL(hypotenuse-leg)
Corresponding Parts of Congruent Triangles are Congruent
what does CPCTC stand for ?
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