Classifying shapes

Front

What is a trapezoid?

Back

A trapezoid is a four-sided shape (quadrilateral) with at least one pair of parallel sides.

Front

What does congruent mean?

Back

Congruent means equal in shape and size.

Front

What is an acute triangle?

Back

An acute triangle is a triangle that has three acute angles.

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all sides of equal length and both pairs of opposite sides parallel.

Front

What is a square?

Back

A square is a special type of rectangle and rhombus, where all sides are equal and all angles are right angles.

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with opposite sides equal and all angles are right angles.

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with both pairs of opposite sides parallel and equal in length.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one obtuse angle (greater than 90 degrees).

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet and are always the same distance apart.