Triangle Sum Theorem
The theorem that states that the measures of the angles in a trianlge add up to 180 degrees.
A triangle with 3 acute angles (less than 90 degrees).
A triangle with one right angle.
A triangle with one obtuse angle
A triangle with 3 congruent sides
A triangle with at least two congruent sides
a triangle with no congruent sides
the point that divides a segment into two congruent segments
the perpendicular segment from a vertex of a triangle to the opposite side or the line that contains the opposite side
A closed figure formed by three or more line segments that intersect only at their endpoints.
a four-sided polygon