4.G.1-3

Front

What is a square?

Back

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

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all sides equal, but angles can be obtuse or acute.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical halves.

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

What is a ray in geometry?

Back

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is an angle?

Back

An angle is formed by two rays that share a common endpoint.

Front

What is the sum of angles in a triangle?

Back

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