Angles
Geometry Solids
Polygons
Triangles
Geometry Language

100

Two rays or line segments that share the same endpoint.
What is an angle?

100

A three dimensional figure that takes up space.
What is a solid?

100

A flat 2-dimensional figue made of two or more sides.
What is a polygon?

100

A polygon with three sides.
What is a triangle?

100

A straight line that has two end points.
What is a line segment?

200

An angle that is exactly 90 degrees.
What is a right angle?

200

A solid formed by a flat polygon used over and over.
What is a polyhedren?

200

A polygon where all side lengths and angle measures are the same.
What is a square?

200

A triangle that has all equal sides.
What is an equilateral triangle?

200

A straight line that goes in one direction forever starting from an end point.
What is a ray?

300

An angle that is less than 90 degrees.
What is an acute angle?

300

A six-faced solid.
What is a cube?

300

Any polygon with four sides.

300

A triangle that has two equal sides.
What is an isosceles triangle?

300

A point where two lines meet.
What is a vertex?

400

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

400

A 3-D figure made of four triangles and a square.
What is a pyramid?

400

A four-sided figure with opposite sides parallel. Opposite angles are equal, too.
What is a rhombus?

400

A triangle with no equal sides.
What is a scalene triangle?

400

Two lines that cross or meet.
What are intersecting lines?

500

An angle that is exactly 180 degrees so that it forms a straight line.
What is a straight angle?

500

A solid shaped like a ball.
What is a sphere?

500

A polygon with two sets of parallel lines.
What is a parallelogram?

500

A triangle with a 90 degree angle.
What is a right triangle?

500

Two lines that stay the same distance apart and never meet
What are parallel lines?