I am a location in space. It takes only one letter to name me.
What is a Point?
100
I am the point where two rays meet to form an angle.
What is a vertex?
100
A triangle that has three sides that are the same length.
What is an Equilateral Triangle?
100
A tool on the Geometry Template that is used to measure and draw angles. It can be a whole circle or half circle.
What is a Protractor?
200
An angle whose measure is greater than 0º and less than 90º.
What is an Acute Angle?
200
My length cannot be measured, but I am named by two of my points.
What is a line or ray?
200
My length can be measured. I have two endpoints.
What is line segment?
200
A triangle that has at least two sides that are the same length.
What is an Isosceles Triangle?
200
A tool that can be used to draw a circle, or copy a line segment.
What is a Compass?
300
An angle whose measure is greater than 90º and less than 180º.
What is an Obtuse Angle?
300
I do not curve. I have only one end point.
What is a ray?
300
Two of us meet.
What is Intersecting lines, perpendicular lines, or perpendicular line segments?
300
A triangle that has no sides that are the same length.
What is a Scalene Triangle?
300
A flat shape with four sides and four angles.
What is a Quadrangle?
400
An angle that measures 180º
What is a Straight Angle?
400
We have two endpoints. When two of us meet, we form one or more right angles.
What is perpendicular line segments?
400
Any line segment from the center of the circle to any point on the circle.
What is a radius?
400
Having the same shape and size. (You may need to flip the 2D shape, rotate, or slide it over the other shape to determine this.)
What is Congruent?
400
Thin piece of wood or plastic that has inches marked off along it's edge. The inches are usually divided into halves, quarters, and sixteenths, with marks that are different sizes.
What is a Ruler?
500
An angle whose measure is greater than 180º and less than 360º.
What is a Reflex Angle?
500
Our lengths cannot be measured. There are always at least two of us. We always stay the same distance apart.
What are parallel lines?
500
Any line segment that passes through the center of the circle and has its endpoints on the circle.
What is diameter?
500
A 2 dimensional figure that is made up of three or more line segments joined end to end to make one closed path.
What is a Polygon?
500
An arrangement of repeated, closed shapes that cover a surface so no shapes overlap and no gamps exist between shapes.