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 square, rectangle, rhombus, trapezoid, and parallelogram.

Front

What is a square?

Back

A square is a quadrilateral with four equal sides and four right angles.

Front

What is a rectangle?

Back

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

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all four sides equal and opposite angles equal.

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 acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

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