Triangles and Quadrilaterals

Front

What is a triangle?

Back

A triangle is a shape with three sides and three angles.

Front

What is a quadrilateral?

Back

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

Front

How many sides does a triangle have?

Back

A triangle has three sides.

Front

How many sides does a quadrilateral have?

Back

A quadrilateral has four sides.

Front

What do you call a triangle with all sides equal?

Back

An equilateral triangle.

Front

What do you call a triangle with one right angle?

Back

A right triangle.

Front

What do you call a triangle with one angle greater than 90 degrees?

Back

An obtuse triangle.

Front

What do you call a triangle with all angles less than 90 degrees?

Back

An acute triangle.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is 180 degrees.

Front

What is the sum of the angles in a quadrilateral?

Back

The sum of the angles in a quadrilateral is 360 degrees.