Classifying Quadrilaterals and Triangles

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides and four angles.

Front

What are the types of quadrilaterals?

Back

The main types of quadrilaterals are squares, rectangles, rhombuses, trapezoids, and parallelograms.

Front

What is a square?

Back

A square is a quadrilateral with all four sides equal in length and all four angles equal to 90 degrees.

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with opposite sides equal in length and all four angles equal to 90 degrees.

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all four sides equal in length, but angles are not necessarily 90 degrees.

Front

What is a trapezoid?

Back

A trapezoid is a quadrilateral with at least one pair of parallel sides.

Front

How many sides does a triangle have?

Back

A triangle has three sides.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are equal in length and all angles are equal to 60 degrees.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle with at least two sides equal in length.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths.