- Print the notecards
- Fold each page in half along the solid vertical line
- Cut out the notecards by cutting along each horizontal dotted line
- Optional: Glue, tape or staple the ends of each notecard together

front 1 Acute Angle | back 1 An angle with a measure greater than 0 |

front 2 Right Angle | back 2 An angle with a measure of 90 |

front 3 Obtuse Angle | back 3 An angle with a measure greater than 90 |

front 4 Straight Angle | back 4 An angle with measure of 180 |

front 5 Vertical Angle | back 5 Two pairs of opposite angles formed by two intersecting lines. |

front 6 Adjacent Angle | back 6 Two angles that have the same vertex, share a common side, and do not overlap. |

front 7 Complementary Angle | back 7 Two angles that have a sum of their measures as 90 |

front 8 Supplementary Angle | back 8 Two angles that have a sum of their measures as 180 |

front 9 Parallel Lines | back 9 Two lines in the same plane that do not intersect. |

front 10 Transversal | back 10 A line that intersects two parallel sides. |

front 11 Corresponding Angles | back 11 Angles that have the same position on two different parallel lines cut by a transversal. |

front 12 Alternate Interior Angles | back 12 Nonadjacent interior angles found on opposite sides of the transversal. |

front 13 Alternate Exterior Angles | back 13 Nonadjacent exterior angles found on opposite sides f the transversal. |

front 14 Consecutive Interior Angles | back 14 When two lines are cut by a transversal, the pair of angles on one side of the transversal and inside the two lines. |

front 15 Triangle | back 15 A figure having three sides |

front 16 Equilateral Triangle | back 16 A triangle with all sides congruent. |

front 17 Isosceles Triangle | back 17 A triangle with two sides congruent. |

front 18 Scalene Triangle | back 18 A triangle with no sides congruent. |

front 19 Right Triangle | back 19 A triangle with one right angle. |

front 20 Legs | back 20 The sides that are adjacent to the right angle of a right triangle. |

front 21 Hypotenuse | back 21 The side opposite the right angle in a right triangle. |

front 22 Pythagorean Theorem | back 22 If a triangle is a right triangle, then the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs. |

front 23 Quadrilateral | back 23 A closed figure with four sides and four vertices. |

front 24 Parallelogram | back 24 A quadrilateral with opposite sides parallel and congruent. |

front 25 Rhombus | back 25 A parallelogram with four congruent sides. |

front 26 Rectangle | back 26 A parallelogram with four right angles. |

front 27 Square | back 27 A parallelogram with all sides congruent and four right angles. |

front 28 Trapezoid | back 28 A quadrilateral with exactly one pair of parallel sides. |

front 29 Isosceles Trapezoid | back 29 A figure in which non-parallel sides and base angles are of the same measure. |

front 30 Polygon | back 30 A simple closed figure in a plane formed by three or more line segments. |

front 31 Sum Interior Angles of Polygon | back 31 (n - 2) * 180 |

front 32 Transformation | back 32 A movement of a geometric figure. |

front 33 Reflection | back 33 A transformation where a figure is flipped over a line. |

front 34 Line of Reflection | back 34 An image will reflect through a line. |

front 35 Translation | back 35 A transformation where a figure is slide from one position to another without being turned. |

front 36 Rotation | back 36 A transformation where a figure is turned around a fixed point. |

front 37 Dilation | back 37 A transformation that alters the size of a figure but not its shape. |

front 38 Scale Factor | back 38 The ratio of a length on a scale drawing or model to the corresponding length on the real object. |

front 39 Similar Figures | back 39 Figures that have the same shape but not necessarily the same size. |