Studied by 12 peopleHow do you prove triangles congruent?
ASA, SSS, AAS, SAS, hy-leg
median
a segment connecting the vertex of a triangle to the m of its opposite side
altitude of a triangle
perpendicular distance between a vertex and the line containing the opposite side
perpendicular bisector of a triangle
a line that passed through the m of / bisects a segment and is perpendicular to the segment
scalene
no congruent sides
isosceles
2 congruent sides
equilateral
all of the sides are congruent
if a point lies on the angle bisector, then..
the point is equidistant from the sides of the angle
if a point is equidistant from the sides of the angle…
then the point lies on the angle bisector
if a point lies on the perpendicular bisector,
then the point is equidistant from the endpoints
if the point is equidistant from the endpoints of a segment,
then the point lies on the perpendicular bisector
if a line is perpendicular to a plane,
then the line is perpendicular to all of the lines that pass through the point of intersection and and are on the plane
if 2 sides of a triangle are congruent,
then the angles opposite those sides are congruent
an equilateral triangle is also
equiangular
the bisector of a vertex angle of an isosceles triangle is..
perpendicular to the base at its midpoint
if 2 angles of a triangle are congruent, then
the sides opposite those angles are congruent
Note
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