|Two or more lines that do not lie in the same plane. They are not parallel and do not intersect.
|Points on a single line
|Points that share the same plane
|2 adjacent angles whose non-common sides are opposite rays (supplementary)
|A line that meets the midpoint of another line, forming a right angle
|A line that intersects 2 or more lines in a plane at different points
|Congruent or Supplementary? Corresponding Angles
|Congruent or Supplementary? Consecutive Exterior Angles
|Congruent or Supplementary? Alternate Interior Angles
|Congruent or Supplementary? Alternate Exterior Angles
|Congruent or Supplementary? Consecutive Interior Angles
|When the third angle on an isosceles triangle is a right angle, it is called a ____________________
|Right Isosceles Triangle
|A line segment joining a vertex to the midpoint of the opposite side. A triangle has three of these.
|The point where the three medians of the triangle intersect. "The center of gravity" of the triangle.
|A line segment joining the midpoints of two sides of a triangle. A triangle has three of these.
|A midsegment is parallel to the third side and _______ its length.
|The segment joining the centroid and the midpoint is __________ of the length of the median.
|When two triangles have corresponding angles that are congruent, the triangles are similar.
|AA (Angle-Angle) Similarity
|When two triangles have corresponding angles that are congruent and corresponding sides with identical ratios, the triangles are similar.
|SAS (Side-Angle-Side) Similarity
|The Pyhagorean Theroem can only be used with _______ triangles.
|If the three sides of the triangle are congruent to three sides of another triangle, the the triangles are congruent.
|If two sides and the INCLUDED ANGLE of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent
|If two angles and the INCLUDED SIDE of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent.
|If two triangles and a NON-INCLUDED side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent.
|Corresponding parts of congruent triangles are congrent
|What are these figures?
|What are these lines called?
|What are these figures?
|What are <2 and <4 referred to as?
|What are the three lines pictured in the triangle?
|Midsegments of a triangle
|What proof of similar triangles is pictured?
|AA Theorem (Angle-Angle)
|What proof of congruent triangles is shown here?
|SSS Theorem (Side-Side)
|What proof of congruent triangles is pictured?
|SAS Theorem (Side-Angle-Side)
|What proof of congruent traingles is pictured below?
|ASA Theorem (Angle-Side-Angle)
|Is this a proper proof of congruent triangles? If so, which one?
|Yes, AAS Theorem (Angle-Angle-Side)
|Determine what relation <2 has with <6.
|They are Corresponding Angles
|Two angles that lie between parallel lines on the same side of the transversal.
|Consecutive Interior Angles
|Name the relationship between <2 and <8
|They are Consecutive Exterior Angles