Angles
Formulas
Lines
Other Vocabulary
100
Smaller than 90 degrees
What is an acute angle
100
Half way between two points.
What is midpont
100
Location of something, and has no dimension
What is a point
100
Points in the same plane
What is coplanar
200
Larger than 90 degrees, but smaller than 180 degrees.
What is an obtuse angle
200
A^2+B^2=C^2
What is Pythagorean Theroem
200
What is straight, and moves infinitely in both direction; unmeasurable
What is a line
200
Two lines that do not intersect or touch each other at any point. They run side-by-side.
What is parallel lines
300
Measures exactly 180 degrees, and makes a straight line.
What is a straight angle
300
What type of triangle can you use pythagorean theroem for
What is a right triangle
300
A flat, two-dimensional surface that extends infinitely in all directions
What is a plane
300
Lines meeting one another at a right angle. They form an upside T
What is Perpendicular lines
400
Bigger than an acute angle, but smaller than an obtuse. It measures exactly 90 degrees
What is a right angle
400
(xX1+X2)/2 , (Y1+Y2)/2; Average
What is the midpoint formula
400
A line with one endpoint; unmeasurable
What is a ray
400
Three or more points that form a straight line.
What is collinear
500
(X2-X1)^2 + (Y2-Y1)^2
What is the distance formula
500
A section of a line with two endpoints; measurable
What is a line segment
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