Geometry and Measurement

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

What is a right trapezoid?

Back

A right trapezoid is a quadrilateral with one pair of parallel sides and two right angles.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What are parallel lines?

Back

Parallel lines are lines that are always the same distance apart and never intersect.

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is an acute angle?

Back

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

Front

How many sides does a quadrilateral have?

Back

A quadrilateral has 4 sides.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.