1
Crossing point of the perpendicular bisectors of a triangle
2
Crossing point of the altitudes of a triangle
3
Triangle with three equal sides
4
Triangle with an obtuse angle
5
Crossing point of the medians of a triangle
6
Triangle has three acute angles
7
Perpendicular to the sides by the midpoint
8
Triangle having a right angle
9
Triangle has two equal sides and one unequal
10
Polygon formed by three sides.
11
Crossing point of the bisectors of a triangle
12
Line that divides an angle into two equal parts
13
Triangle has three unequal sides
14
Segment joining each vertex opposite half
15
Perpendicular from a vertex to the opposite side
