Vocabulary
Angles
Polygons
Formulas
Potpourri
100
An angle that measures between 0 and 90 degrees
What is an acute angle?
100
90 degrees
What is the measure of a right angle?
100
A polygon with four sides
What is a quadrilateral?
100
The midpoint of segment AB with A(-6, 4) and B(-4, -2)
What is (-5, 1)?
100
A duodecagon
What is a 12-sided polygon?
200
Two or more figures that are the same size and shape
What are congruent figures?
200
The common initial point that two rays share when forming an angle
What is a vertex?
200
All sides and angles of a polygon are congruent
What is a regular polygon?
200
The length of segment ST with S(-3, 4) and T(5, -2)
What is 10?
200
To divide into two congruent parts
What is bisect?
300
Three or more points that lie on the same line
What are collinear points?
300
Two angles that have a common side and a common vertex but no common interior points
What are adjacent angles?
300
A 5-sided polygon
What is a pentagon?
300
The midpoint formula
What is (x1 + x2)/2, (y1+y2)/2?
300
The perimeter of a square with a side measure of 7.5 cm
What is 30 cm?
400
A pair of adjacent angles whose noncommon sides are opposite rays
What is a linear pair?
400
Two nonadjacent angles formed by two intersecting lines
What are vertical angles?
400
The distance around a polygon
What is perimeter?
400
P = 2w + 2l
What is the formula for finding the perimeter of a rectangle?
400
The name of a ray with a direction point A and initial point B
What is ray BA?
500
A pair of angles that add up to 180 degrees
What are supplementary angles?
500
Two lines that intersect to form four right angles
What are perpendicular lines?
500
A line containing a side will pass through the interior of this type of polygon
What is a concave polygon?
500
The distance formula
What is the square root of (x2 - x1) squared + (y2 - y1)squared?
500
The measure of an angle complementary to an angle measuring 72 degrees
What is 18 degrees?
M
e
n
u