All the types of triangles
Right Triangle A right triangle is a triangle with one angle with 90 degrees.
Acute Triangle The acute triangle is a triangle that has 1 degrees through 89 degrees.
Obtuse Triangle The obtuse triangle is a triangle that has 91 degrees through 179 degrees.
Equilateral Triangle An equilateral triangle has all equal sides and they are not parallel.
Isosceles Triangle An isosceles triangle has 2 equal sides and 2 equal angles.
Scalene Triangle A scalene triangle has no equal sides or angles.