Perpendicular line from a vertex to the opposite side. Also known as height.
What is the Altitude?
100
How does a point change when reflecting it across the x-axis?
What is (x,y) becomes (x, -y)?
100
How does a point change when reflected across the y axis?
What is (x,y) becomes (-x,y)
100
If triangle ABC is congruent to triangle DEF. Side BC is congruent to which side of triangle DEF?
What is side EF?
100
If you deemed two triangles similar based solely on the fact they had two congruent angles, you were a smarty and used the __________________ _______________?
What is the AA Similarity Postulate?
200
Fancy term for the scale factor; ratio of corresponding sides.
What is Ratio of Similitude?
200
What will the point (-3,-5) be when reflected across the y axis?
What is (3, -5)?
200
The flip of a figure over a line to produce a mirror image.
What is a reflection?
200
Which of the following is not a plausible postulate for triangle congruency? ASA, SSS, SSA, SAS.
What is SSA? (Triangles don't have butts!)
200
x=x is an example of which property?
What is the reflexive?
300
The Slide of a figure from one location to another
What is a Translation?
300
Write the rule for the following translation.
(1,4) translates to (4, -3)
What is (x+3, y-7)?
300
What is the rule for the following translation?
(-5, 7) translates to (5, 7)?
What is (x+10, y+0)?
300
What is the difference between Congruent and Similar?
What is Congruent means all sides and angles are the same size. Similar is when Angles are Congruent, but sides are proportionally similar.
300
Name the three types of proofs discussed in class that would be used for proving similar triangles.
What is Paragraph proofs, column proofs, and flow proofs?
400
A distance preserving map of a geometric figure to another location using a reflection, rotation, or translation.
What is Isometry?
400
Describe what happens to the point (4,5) when flipped across the line y=x.
What is (5,4)?
400
What happens when you flip the point (x, y) across the line y=-x?
What is (-y, -x)?
400
DAILY DOUBLE!! (Winners get double points)
True or False: All triangles that have at least 2 of the same angle measurements will always be congruent.
What is false? They could be similar.
400
If the measurements of two corresponding sides of triangles are proportional, then the triangles are similar. What Postulate is this?
What is the Side-Side-Side Similarity Postulate?
500
A geometric turn around a fixed point.
What is a Rotation?
500
A 90 degree rotation clockwise is the same as a _________________________.
What is a 270 degree rotation counter clockwise?
500
Reflect the point (6, 7) across the line y=-x.
What is (-7, -6)?
500
Why can't Angle-Angle-Angle be a valid postulate for Congruency?
What is because it is possible for all angles to be congruent, however triangle side lengths could be different lengths therefore these triangles would not be congruent.
500
If x < y, and y < z, then x < z. This is an example of which property?