Lines
Angles
Triangles
Vocabulary
Miscelaneous
100
two lines that are the same distance apart and will never touch
What is parallel lines
100
This is the term for a 90 degree angle
What is right angle
100
A triangle that has all sides the same length
What is equilateral
100

Cuts an angle into two congruent parts

What is angle bisector

100
A shape that has 6 sides is called
What is a hexagon
200
lines that intersect to form a right angle
What is perpendicular
200
An angle that is less than 90 degrees
What is acute
200
A triangle with two sides the same length
What is isosceles
200

exact point on a segment that creates two congruent segments. 

midpoint 

200
A shape with 5 sides is called
What is a pentagon
300
this has one endpoint and continues in one direction forever
What is a ray
300
an angle that is greater than 90 degrees
What is obtuse
300
A triangle with one angle greater than 90 degrees
What is obtuse triangle
300

a flat two dimensional surface that extends infinitely far

What is plane

300
A right triangle has one angle that is 45 degrees. What is the measure of the 3rd angle
What is 45 degrees
400
This is part of a line
What is a line segment
400
this is the number of degrees in a straight angle
What is 180 degrees
400
A triangle with a 90 degree angle and no sides the same length
What is right, scalene
400

the geometric center of a plane figure.

What is centroid

400

the information at the beginning of a proof

What is proof

500
This is a closed figure with at least 3 sides.
What is a polygon
500
This is used to measure angles
What is a protractor
500
All angles in every triangle will add up to this number of degrees
What is 180 degrees
500

The ratio between side lengths of a corresponding object. 

What is Scale Factor

500
A boat has a sail with one pair of perpendicular lines, and two sides the same length. What kind of triangle is it?
What is Right, isosceles
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