Angles
Points, Lines, Angles
More Points, Lines, Angles
Shapes
100
An angle that measures 90º
What is a Right Angle?
100
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?
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?
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 lines the cross  at a point.

What is Intersecting lines, 

300
A triangle that has no sides that are the same length.
What is a Scalene Triangle?
400

An angle that measures 90º

What is a Right Angle?

400
We have two endpoints. When two of us meet, we form one or more right angles.
What is perpendicular line segments?
400

lines the cross and form a 90 degree angle 

What is perpendicular lines?

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?
500

An angle whose measures is180º .

What is a straight 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

A line that separates an image into 2 mirror images 

what is a line of symmetry?

500

A 2 dimensional figure with 2 sets of parallel sides

What is a parallelogram?

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