Angle Relationships

Front

Triangle angle sum

Back

180 degrees

Front

Quadrilateral angle sum

Back

360 degrees

Front

Scalene triangle?

Back

A triangle with no equal side lengths and no equal angle measurements.

Front

What is an isosceles triangle?

Back

A triangle with 2 equal side lengths and 2 equal angle measurements.

Front

Equilateral triangle

Back

A triangle with 3 equal side lengths and 3 equal angle measurements.

Front

What does congruent (⩭) mean?

Back

Objects have the same size and same shape.

Front

Vertical Angles

Back

Front

Supplementary angles

Back

Front

When two lines are parallel (∥)...

Back

Front

What are perpendicular lines (⟂)?

Back

Lines that intersect and form right angles (90°).