Postulates and Theorems
When all 3 pairs of corresponding sides are congruent.
What is SSS
Quadrilateral ABCD has a diagonal drawn from A to C, forming triangle ABC and triangle CDA. AB = CD, and AD = CB.
What is SSS?
Triangle ABC has a midpoint, M, on segment AC. What line segments are congruent
What is "AM is congruent to CM"?
A point which divides a segment into two congruent segments.
What is the midpoint?
A quadrilateral with both pairs of opposite sides parallel
What is a parallelogram?
When 2 pairs of corresponding angles and the included corresponding sides are congruent.
What is ASA
Two triangles ABC and EDC have no collinear segments and touch at point C. AC = EC and BC = DC.
What is SAS?
When line segment AB intersects line segment CD at point E, the following angles are congruent.
What is angles AED and BEC, and angles AEC and BED.
When 2 lines meet and divide each other into 2 congruent segments.
What is bisect?
What the diagonals of a parallelogram do
What is Bisect each other?
2 pairs of corresponding sides and the included corresponding angles are congruent.
What is SAS
If 2 medians of a triangle intersect at point (3,4), the third median intersects at this point.
What is (3,4)?
RT is the angle bisector of angle WRX. What angles are congruent
What is "angle WRT is congruent to XRT"?
It divides intersects a line segment at the midpoint of the line segment and forms right angles with the line segment.
What is a perpendicular bisector?
A special type of parallelogram where the diagonals are congruent and all angles are 90 degrees.
What is a rectangle?
If a point lies on the perpendicular bisector of a line segment, then it is equidistant from the endpoints of the segment.
What is the perpendicular bisector theorem?
Two triangles have no collinear segments. ABC and EDC touch at point C. AB is parallel to ED and BC is congruent to DC. Name all ways.
What is AAS or ASA?
AB and GH bisect each other at D. What line segments are congruent
What is AD = BD and GD = HD.
These non-adjacent, congruent angles are created by two intersecting lines.
What are vertical angles?
In parallelogram ABCD, AB is 4, and BC is 3. Diagonals AC and BD intersect at E. The length of AC is 5. Find the length of AE.
What is 2.5?
What is 180 degrees?
The sum of the 3 interior angles of any triangle
What is 180 degrees?
The angles formed by two parallel lines being cut by a transversal that are opposite each other and on the "outside" of the parallel lines.
What are alternate exterior angles? (They are congruent)
In triangle ABC, segment BD is drawn from B to AC. This segment is congruent to itself because of the ........
What is the reflexive property?
Parallelogram has vertices A (0,5) B (5,5) C (5,0) and D. What are the coordinates of D
What are (0,0)