front 1 an exact spot in space | back 1 Point |
front 2 straight path that continues infinitely in two directions | back 2 Line |
front 3 part of a line with two endpoints | back 3 Line segment |
front 4 part of a line with one endpoint and one arrow that goes on forever | back 4 Ray |
front 5 an endless flat surface | back 5 Plane |
front 6 lines that never intersect | back 6 parallel |
front 7 lines that cross at a 90 degree angle | back 7 perpendicular |
front 8 lines that pass through the same point | back 8 intersecting lines |
front 9 90 degrees | back 9 a right angle |
front 10 less than 90 degrees | back 10 acute angle |
front 11 greater than 90 degrees but less than 180 degrees | back 11 obtuse angle |
front 12 180 degrees | back 12 a straight angle |
front 13 same exact measurement(s) | back 13 congruent |
front 14 Two angles whose sum is 180° | back 14 supplementary angles |
front 15 Two angles whose sum is 90°. | back 15 Complementary angles |
front 16 the pairs of opposite angles made by two intersecting lines (they will be congruent) | back 16 vertical angles |
front 17 angles that are right next to each other | back 17 adjacent angles |
front 18 two angles in the same relative position at each intersection in a transversal (where a straight lines cross two parallel lines). These angles are congruent. | back 18 corresponding angles |
front 19 parallel lines are intersected by another line, the intersecting line is called a ______________________ | back 19 transversal |
front 20 Each pair of these angles are inside the parallel lines, and on opposite sides of the transversal (these angles are congruent) | back 20 alternate interior angles |
front 21 a pair of angles on the outer side of each of those two parallel lines but on opposite sides of the transversal (these angles are congruent) | back 21 Alternate Exterior Angles |
front 22 the two inside angles on the same side in a traversal will equal _____ | back 22 180 degrees (same-side interior angles) |
front 23 where two or more line segments or rays meet. | back 23 vertex |
front 24 a ruler with no markings on it | back 24 straight edge |
front 25 tool used to draw circles and arcs (parts of circles) | back 25 compass |
front 26 size of a 2D surface | back 26 area |
front 27 distance around a 2D shape | back 27 perimeter |
front 28 line segment with end points on a circle | back 28 chord |
front 29 distance around a circle | back 29 circumference |
front 30 Figures with corresponding angles that are equal and corresponding sides that are proportional | back 30 similar |
front 31 A chord that passes through the center of the circle from one edge to another | back 31 diameter |
front 32 A line segment from the center of a circle to the edge | back 32 radius |
front 33 The total area on all sides (surfaces) of a figure | back 33 surface area |
front 34 The movement of objects in the coordinate plane where image is either similar to or congruent to the pre-image. | back 34 transformation |
front 35 A Slide, Each vertex moves the same distance in the same directions | back 35 translation |
front 36 A turn, Each vertex is rotated the number of degrees around a rotation point | back 36 rotation |
front 37 A Flip, Each vertex is flipped across a line of reflection to result in a mirror image. | back 37 reflection |
front 38 a line, segment or ray that goes through the midpoint of a segment | back 38 bisector |
front 39 A point on a line segment that divides it into two equal parts. | back 39 midpoint |
front 40 a part of the circumference of a circle or other curve | back 40 arc |
front 41 The amount of space an object takes up. | back 41 volume |
front 42 a quadrilateral with four right angles and 4 congruent sides | back 42 square |
front 43 a quadrilateral with four right angles | back 43 rectangle |
front 44 a quadrilateral with four congruent sides | back 44 rhombus |
front 45 A quadrilateral with two sets of congruent lines that are adjacent to each other. | back 45 kite |
front 46 A triangle with all acute angles | back 46 acute triange |
front 47 A triangle with one obtuse angle and two acute angles | back 47 obtuse triangle |
front 48 A triangle with one 90 degree angle | back 48 right triangle |
front 49 A triangle with all congruent sides | back 49 equilateral triangle |
front 50 A triangle with at least two congruent sides | back 50 isosceles |
front 51 A triangle with no congruent sides | back 51 scalene triangle |
front 52 quadrilateral with both pairs of opposite sides are parallel | back 52 parallelogram |
front 53 A closed figure formed by three or more line segments that do not cross. | back 53 polygon |
front 54 four sided polygon | back 54 four sided polygon |
front 55 A polygon with congruent sides and angles | back 55 regular polygon |
front 56 a quadrilateral with exactly one pair of parallel sides | back 56 trapezoid |
front 57 A set of points in the same plane equal distance from the center. | back 57 circle |
front 58 A set of all points in space that are the same distance from the center point. | back 58 sphere |
front 59 A 3D object where the rectangular faces are perpendicular to the base shape. The base can be any shape. | back 59 right prism |
front 60 3D object with a circular base and one vertex | back 60 cone |
front 61 A prism with triangular faces that meet at one point, a vertex and base that is a polygon. | back 61 pyramid |
front 62 A prism with two congruent parallel bases that are circles. | back 62 cylinder |
front 63 A rectangular prism with faces that are all squares | back 63 cube |
front 64 A line that intersects a curve (or circle) in at least two distinct points. | back 64 Secant |
front 65 A line that touches a curve (or circle) at exactly one point. | back 65 Tangent (to a circle) |
front 66 An angle whose vertex is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B. | back 66 Central Angle |
front 67 *Secondary 2 and higher only* The ratio between the side opposite of an angle and the hypotenuse. | back 67 *Secondary 2 and higher only* Sine |
front 68 *Secondary 2 and higher only* The ratio between the side adjacent to an angle and the hypotenuse. | back 68 *Secondary 2 and higher only* Cosine |
front 69 *Secondary 2 and higher only* The ratio between the side opposite of an angle and the side adjacent to the angle. | back 69 *Secondary 2 and higher only* Tangent (as a triangle ratio) |
front 70 *Secondary 2 and higher only* Exterior Angles Theorem | back 70 *Secondary 2 and higher only* The exterior angle of a triangle is equal to the sum of the two opposite interior angles |