Unit 1
What is an obtuse angle?
An angle that is more than 90 degrees.
What are transformations?
Movements of geometric figures.
What is the rule associative property?
What are interior angles?
Angles inside a triangle.
What does radical mean?
Square root.
What is an angle bisector?
A line or line segment that divides an angle into two equal parts.
What are rigid transformations?
Movements of figures that preserve their shape and size.
What is the rule of Subtraction Property of Equality?
If you subtract the same number from each side of an equation, the two sides remain equal.
What is an included angle?
The angle between two sides of a triangle.
What is Geometric Mean?
An average that multiplies all values and finds a root of the number.
What are congruent angles?
Angles that have equal measure.
What is a reflection?
A transformation that ''flips'' a figure over a reflection line.
What is the rule Symmetric Property of Equality?
If a=b, then b=a
What are remote interior angles?
Two nonadjacent interior angles corresponding to each exterior angle of the triangle.
What are trigonometric ratios used for?
To calculate the measure of one (or both) of the acute angles in a right triangle.
What are supplementary angles?
Two angles whose sum is 180 degrees.
What is a center of rotation?
The point about which a figure is rotated.
What is the rule of Reflexive Property of Equality?
For every real number a, a=a
What is SSS similarity theorem?
If the corresponding sides of two triangles are proportional, then the triangles are similar.
What are adjacent angles?
Two angles that have a common vertex.
What is preimage?
The original figure prior to a translation.
What is the rule of transitive property of equality?
If a=b and b=c, then a=c
What is a hypotenuse leg?
The longest side of a right triangle.