Angles
Lines
Polygons
Shapes
Geometry Facts
100

This angle measures exactly 90 degress.

What is a right angle?

100

These lines will never touch if they keep going on forever.

What are parallel lines?

100

This is a shape that has 5 sides.

What is a pentagon?

100

I am a quadrilateral with one set of parallel sides.

What is a trapezoid?

100

A shape with 4 sides.

What is a quadrilateral?

200

This angle is smaller than 90 degrees.

What is an acute angle?

200

These lines cross over one another.

What are intersecting lines?

200

This is a shape that has 6 sides.

What is a hexagon?

200

I am a quadrilateral with 2 sets of parallel lines.

What is a parallelogram?

200

A shape with many sides.

What is a polygon?

300
This angle measures more than 90 degrees.

What is an obtuse angle?

300

These lines intersect forming 90 degree right angles.

What are perpendicular lines?

300

This is a shape that has 8 sides.

What is an octagon?

300

I am quadrilateral and parallelogram with 4 right angles, but I am not a square.

What is a rectangle?

300

The point where the lines of an angle meet.

What is a vertex?

400

This angle makes a straight line and measures 180 degrees.

What is a straight angle?

400

These lines are exactly the same length.

What are congruent lines?

400

This shape has 3 sides and all sides are congruent.

What is an equilateral triangle?

400

I have 4 sides, 2 sets of parallel lines, and 4 congruent sides.

What is a rhombus?

400

A rectangle is a square, but a square in not a rectangle.

What is false?

500

The rectangle and square are the only quadrilaterals that have this type of angle.

What is a right angle?

500

Lines that have endpoints.

What are line segments?

500

A shape that has 3 sides and one right angle.

What is a right triangle?

500

A shape with 4 congruent sides and 4 right angles.

What is a square?

500

A square is a polygon, a quadrilateral, a parallelogram, a rectangle, and a rhombus.

What is true?