An angle that measures greater than 0 but less than 90
What is an acute angle?
Two rays that have a common endpoint and form a line
What is opposite rays?
A statement that is believed to be true?
What is a conjecture?
The original figure in a transformation
What is a preimage?
The ratio of adjacent to the hypotenuse
Adjacent/hypotenuse
What is cosine?
For two lines intersected by a transversal, a pair of angles that lie in opposite sides of the transversal and outside the other two lines
What is alternate exterior angles?
A straight path that has no thickness and extends forever
What is a line?
An example that proves that a conjecture or statement false
What is a counterexample?
Making a polygon larger or smaller
What is a dilation?
The ratio of opposite to adjacent
Opposite/adjacent
What is tangent?
Angles in the same position in two different polygons that have the same number of angles
What is corresponding angles?
A part of a line that consisting of two endpoints and all points between them
What is a line segment?
The part of a conditional statement following the word then
What is a conclusion?
A transformation about a point, also known as the center of rotation such that each point and its image are the same distance
What is a rotation?
The ratio of opposite to the hypotenuse
Opposite/hypotenuse
What is sine?
An interior angle of a polygon that is not adjacent to the exterior angle
What is a remote interior angle?
The set of all points outside an angle
What is the exterior of an angle?
The statement formed by exchanging the hypothesis and conclusion of a conditional statement
What is a converse?
A transformation that shifts or slides every point of a figure or graph the same distance in the same direction
What is a translation?
The angle formed by a horizontal line and a line of sight to a point below
What is the angle of depression?
Two angles in the same plane with a common vertex and a common side but no common interior points
What is an adjacent angle?
An undefined term in geometry, it names a location and has no size
What is a point?
The statement formed by both exchanging and negating the hypothesis and conclusion of a conditional statement
What is a contrapositive?
A transformation that preserves a polygon/shapeβs length, angle measure, and area
What is a rigid transformation?
The angle formed by a horizontal line and a line of sight to a point above
What is the angle of elevation?