A _________ is a polygon with 4 sides.
A ________ is a parallelogram that has four right angles.
An angle that measures between 0 and 90 degrees is called __________ .
An angle that measures between 90 and 180 degrees is called __________ .
Two angles are _________ if the sum of their measures is 90 degrees.
If two lines in the same plane do not intersect they are _________ .
Angles opposite each other are called __________ .
Two angles are ______________ if they have the same measure.
A __________ is a flat surface that extends indefinitely in all directions.
A ________ is a rectangle with all sides the same length.
Angles that measure 90 degrees are called __________ .
Lines that intersect to form a right angle are called ____________ .
A set of all points in a plane that are equal distance from a given point, (the center) is called ___________ .
The middle of a circle is called the __________ .
The _______ is the distance accross a circle through the center.
The ________ is the distance around a circle.
The _______ is the point where the sides of the angle meet.
The distance between a point on a circle and its center is called ______________.