Geometry Basics: Angles and Triangles

Front

A triangle with no equal side lengths

Back

Scalene Triangle

Front

A triangle with one right angle and two acute angles

Back

Right Triangle

Front

A triangle that has two equal side lengths

Back

Isosceles Triangle

Front

Two or more angles that add up to 90 degrees

Back

Complementary Angles

Front

Opposite angles formed when two lines intersect that are equal

Back

Vertical Angles

Front

A triangle where all three sides are equal in length

Back

Equilateral Triangle

Front

A triangle with all acute angles

Back

Acute Triangle

Front

A triangle with one obtuse angle and two acute angles

Back

Obtuse Triangle

Front

A triangle where all three angles are equal in measure

Back

Equiangular Triangle

Front

Two or more angles that add up to 180 degrees

Back

Supplementary Angles