What Types of Triangles There Are
A triangle is a polygon that has 3 angles, and 3 line segments joined end to end. Thus, we can say that a triangle is a polygon, which has 3 sides, 3 angles, 3 vertices, and the sum of all 3 angles of any triangle equals 180°. Sides and angles define the type of triangle.
5-Minute Crafts would like to tell you about what types of triangles there are. In the bonus section, we’ll recall some terms from our school geometry course.
Types of triangles by angle
Types of triangles by side
Bonus: Terms that describe the elements of an triangle
- The legs are the sides in a right triangle that form its right angle (90°).
- The hypotenuse of a right triangle is the side opposite its right angle.
- The median of a triangle is a line segment that joins one of its vertices with the center of the opposite side.
- The altitude of a triangle, or height, is a line from a vertex to the opposite side, that is perpendicular to that side.
- An angle bisector of an angle of a triangle divides the opposite side into 2 segments that are proportional to the other 2 sides of the triangle.