Show:
Vocab
Congruent Triangles
Similar Polygons
Transformations
Proofs
100
This is a comparison of a number a to a nonzero number b using division.
What is a ratio?
100
When all pairs of corresponding angles are congruent and all pairs of corresponding sides are congruent, then two figures are said to be this.
What is congruent?
100
When all pairs of corresponding angles are congruent and all corresponding side lengths are proportional, then two figures are said to be this.
What is similar?
100
This is an operation that maps or moves an original figure to a new image.
What is a transformation?
100
This is a convincing argument that shows why a statement is true.
What is a proof?
200
If two polygons are similar, then the ratio of the lengths of two corresponding sides is called this.
What is a scale factor?
200
This is the only shortcut that has one angle in it.
What is SAS?
200
This is the reduced form of the ratio 203/87.
What is 7/3?
200
When the new image of a dilated figure is smaller than the original it is called this.
What is a reduction?
200
These are the two pieces of information that should always be known and written in a two-column proof.
What is the given information and the statement of what is being proved?
300
This is an equation that states that two ratios are equal.
What is a proportion?
300
AC is the perpendicular bisector of DB. The length of AB is 8x and the length of AD is 5x + 12. This is the length of AD.
What is 32?
300
This is what x is equal to in the proportion: 12/(5x - 3) = 6/11.
What is 5?
300
This type of transformation creates a mirror image of the original figure.
What is a reflection?
300
When to figures share a corresponding side or angle, then the corresponding parts are said to be congruent because they are this.
What is reflexive?
400
CPCTC stands for this.
What is Corresponding Parts of Congruent Triangles are Congruent?
400
This is the shortcut where only two pieces of information are needed in order to prove that two triangles are congruent.
What is HL?
400
Y is the midpoint of AB and Z is the midpoint of AC. If YZ is equal to 4, then this is what BC is equal to.
What is 8?
400
This is the only type of transformation that will contain numbers in the coordinate notation.
What is a translation?
400
These are the only three shortcuts that can be used to prove that triangles are similar.
What are AA, SSS, and SAS?
500
EF/AB=FG/BC=GH/CD=HE/DA when relating the ratios of corresponding sides of a quadrilateral is an example of this.
What is a statement of proportionality?
500
It is this that if a parallelogram is cut by a diagonal, then the two triangles that are formed have to be congruent.
What is true?
500
In a dilation enlargement the length of CP' is 8 and the length of CP is 3. The length of PQ is 12. This is the length of P'Q'.
What is 32?
500
This type of transformation uses the coordinate notation (x,y)->(y,-x).
What is a 90o clockwise rotation?
500
CPCTC can only be used as a reason in a proof after this has been accomplished.
What is proven that two triangles are congruent?