Classifying Quadrilaterals and Triangles

Front

What is a quadrilateral?

Back

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

Front

Name a type of quadrilateral that has only one pair of parallel sides.

Back

Trapezoid.

Front

What do you call a quadrilateral with all sides equal and opposite angles equal?

Back

Rhombus.

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

How do you classify a triangle with all sides of different lengths?

Back

Scalene Triangle.

Front

What is an isosceles triangle?

Back

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

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are equal in length.

Front

What is a right triangle?

Back

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

Front

How do you classify a triangle with all angles less than 90 degrees?

Back

Acute Triangle.

Front

What is an obtuse triangle?

Back

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