Types of Triangles: Angles and Sides

Front

Triangle with all sides equal

Back

Equilateral Triangle

Front

Triangle with two sides equal

Back

Isosceles Triangle

Front

Triangle with all sides different

Back

Scalene Triangle

Front

Triangle with all angles less than 90°

Back

Acute Triangle

Front

Triangle with one angle equal to 90°

Back

Right Triangle

Front

Triangle with one angle greater than 90°

Back

Obtuse Triangle

Front

Sum of angles in a triangle

Back

180°

Front

Equilateral triangle angles

Back

60° each

Front

Isosceles triangle angles

Back

Two equal angles

Front

Scalene triangle angles

Back

All angles different