2032780
Description
Flashcards by Jadéjah Robinson, updated more than 1 year ago
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Created by Jadéjah Robinson
almost 11 years ago
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| Question | Answer |
| Skew | Two or more lines that do not lie in the same plane. They are not parallel and do not intersect. |
| Collinear | Points on a single line |
| Coplanar | Points that share the same plane |
| Linear Pairs | 2 adjacent angles whose non-common sides are opposite rays (supplementary) |
| Perpendicular Bisector | A line that meets the midpoint of another line, forming a right angle |
| Transversal | A line that intersects 2 or more lines in a plane at different points |
| Congruent or Supplementary? Corresponding Angles | Congruent |
| Congruent or Supplementary? Consecutive Exterior Angles | Supplementary |
| Congruent or Supplementary? Alternate Interior Angles | Congruent |
| Congruent or Supplementary? Alternate Exterior Angles | Congruent |
| Congruent or Supplementary? Consecutive Interior Angles | Supplementary |
| 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. | Median |
| The point where the three medians of the triangle intersect. "The center of gravity" of the triangle. | Centroid |
| A line segment joining the midpoints of two sides of a triangle. A triangle has three of these. | Midsegment |
| A midsegment is parallel to the third side and _______ its length. | half |
| The segment joining the centroid and the midpoint is __________ of the length of the median. | one-third |
| 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. | right-angled |
| SSS | If the three sides of the triangle are congruent to three sides of another triangle, the the triangles are congruent. |
| SAS | If two sides and the INCLUDED ANGLE of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent |
| ASA | If two angles and the INCLUDED SIDE of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent. |
| AAS | 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. |
| CPCTC | Corresponding parts of congruent triangles are congrent |
| What are these figures? | Rays |
| What are these lines called? | Skew Lines |
| What are these figures? | Line Segments |
| What are <2 and <4 referred to as? | Vertical Angles |
| 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 |
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