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Geometry Terms
Angles
Triangles
Misc
100

You need two of these to make an angle.

What are rays?

100
An angle measuring 90 degrees.
What is a right angle?
100
The number of degrees in every triangle.
What is 180 degrees?
100

A mirror is an example of this transformation. 

What is a reflection?

200

A triangle with equal sides.

What is an equilateral triangle?

200
An angle measuring less than 90 degrees.
What is an acute angle?
200
These are the three types of triangles according to their angles.
What is acute, obtuse, and right?
200

The measure of a straight angle. 

What is 180 degrees?

300

The place on an angle where two rays meet.

What is a vertex?

300
An angle measuring more than 90 degrees.
What is an obtuse angle?
300
These are the three types of triangles according to their sides.
What are equilateral, isosceles, and scalene?
300

What shapes could be combined to make a rectangle?

Accept any reasonable answer. 

400

The name for a triangle that has one right angle and no equal sides.

What is a right scalene triangle?

400
A tool used to measure angles.
What is a protractor?
400
The missing angle if a triangle has angles measuring 45, 90, and ______ degrees.
What is 45 degrees?
400

The missing measurement of a triangle with these angles: 50 degrees, 98 degrees, ______degrees.

What is 32 degrees?

500

A straight path of points that goes on forever in both directions.

What is a line?

500
The point where two lines meet and form an angle.
What is a vertex?
500
A triangle whose angles measure 60, 60 and 60.

What is an acute, equilateral triangle. 

500

Three shapes that are also parallelograms.

What are squares, rectangles, and rhombuses?