Unit One
A segment that goes from the middle of the circle to the outside of the circle.
What is a Radius?
The short hand for "If two triangles are congruent, all their corresponding parts are congruent"
What is CPCTC?
If a figure is dilated, then corresponding ______ are congruent.
What are angles?
Sine cosine and tangent are parts of this category of math.
What is Trigonometry?
What is perpendicular?
Two lines that never intersect.
What are parallel lines?
Two shapes that have all the same corresponding angles and sides
Congruent Shapes
The value by which every length in an original figure is multiplied when you are working with similarity.
What is Scale factor?
A set of values that always satisfies the Pythagorean theorem
What is Pythagorean triple?
In a parallelogram, opposite sides are parallel and _____
Congruent
A line through the vertex of an angle that divides it into two equal angles.
What is angle bisector?
The three main ways to show that two triangles are congruent
SAS, ASA, and SSS
One figure is _______ to another if there is a sequence of rigid motions and dilations that takes the first figure so that it fits exactly over the second.
What is similar?
The ratio (fraction) of the length of the adjacent leg over the length of the hypotenuse.
What is cosine?
A pair of angles that are not adjacent angles but add up to 180 degrees.
Supplementary Angles
A sequence of steps (translations, reflections, and rotations) that take one shape to another congruent shape.
What is a rigid transformation?
When two lines cross, the angles on opposite sides of the intersection that are congruent
Vertical Angles
The number of angles required to show that two triangles are similar
Two (The Angle-Angle SimilarityTheorem)
The ratio (fraction) of the length of the opposite leg over the length of the hypotenuse.
What is sine?
The ratio (fraction) of the length of the opposite leg over the length of the adjacent leg.
What is Tangent?
Of the 5 pairs of angles created by parallel lines crossed by a transversal, the pair that is inside the parallel lines and on opposite sides of the the transversal.
What is Alternate Interior Angles?
When a quadrilateral's two diagonals bisect each other, their endpoints make this shape.
What is parallelogram?
In the Pythagorean theorem, c always represents this.
What is the hypotenuse?
In a 30 60 90 triangle, the long leg is always the length of the short leg multiplied by this.
What is
sqrt3
The steps for constructing this shape are:
Draw a circle.
Draw another circle from the edge of the circle to the center.
Connect the two centers of the circles and one of the intersections.
Equilateral Triangle