front 1 What is a point? | back 1 A location represented by a dot. Named by a capital letter. |
front 2 What is a line? | back 2 A straight, continuous arrangement of infinitely many points. Named by 2 points on the line or by a small letter. |
front 3 What is a Plane? | back 3 A flat surface that extends infinitely long and wide. Named with a cursive letter. |
front 4 What is a collinear plane? | back 4 Where 3 or more points are on the same line. |
front 5 What are Coplanar points? | back 5 3 or more points on the same plane. |
front 6 What is a line segment? | back 6 2 points, and all the continuous points between them that are collinear with the two points. |
front 7 What is a congruent segment? | back 7 2 segments that are the same in measure or length |
front 8 What is the midpoint of a segment? | back 8 Point on the segment that's the same distance from both endpoints. |
front 9 Bisect? | back 9 To divide into two congruent parts. The midpoint bisects two points. |
front 10 Ray | back 10 An endpoint and all collinear points on one side of that endpoint. |
front 11 Midpoint formula. | back 11 M= (x1+x2)/2 (Y1+Y2) /2 Don't forget to add the three-dot triangle before your points. |
front 12 What is an angle? | back 12 2 non collinear rays called sides having a common endpoint called a vertex. |
front 13 Congruent angles? | back 13 2 or more angles with the same degree measure. |
front 14 What is an angle bisector | back 14 A ray from the vertex of an angle that divides the angle into 2 equal angles.t |
front 15 What are skew lines.? | back 15 Non-Coplanar lines that never intersect. Drawling... Two lines on different planes. |
front 16 Perpendicular lines? | back 16 Lines that intersect at 90 degrees angle. |
front 17 Vertical angles? | back 17 2 angles that are opposite each other when 2 lines inter sect. The two opposite angles are the same measure. Looks like in "x'' |
front 18 Linear pair of angles? | back 18 2 angles that share a common vertex and side, while their other two sides form a straight line. |
front 19 Complementary angle? | back 19 A pair of angles that add to measure 90 degrees. |
front 20 Supplementary angles? | back 20 A pair of angles that add up to measure 180 degrees. |