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Chapter 5 part A
Chapter 5 Review
| Question | Answer |
|---|---|
| Acute Angle | An angle that measures lesss than 90 degrees |
| Acute Triangle | A triangle that has three |
| Angle | A figure formatted by two rays with a common end point called the vertex. |
| Center of rotation | The point about which the figure is rotated |
| Complementary Angles | Two angles whose measures add at 90 degrees |
| Congruent | Having the same size and shape. |
| Correspondence | The relationship between two or more objects that are matched. |
| Equilateral Triangle | a triangle with three congruent sides. |
| Image | A figure resulting from a transformation. |
| Isosceles Triangle | A triangle with at least two congruent sides. |
| Line | A straight path that extends without an end in opposite directions |
| Line of symmetry | The imaginary mirror in line of symmetry. |
| Obtuse angle | An angle that is measured and is greater than 90 but less than 180. |
| Obtuse triangle | A triangle containing one obtuse angle. |
| Parallel lines | Lines in a plane that do not intersect. |
| Parallelogram | Quadrilateral with two pair of parallel sides |
| Perpendicular lines | Lines that intersect two parallel lines |
| Plane | A flat surface that extends forever |
| Point | An exact location in space |
| Polygon | A closed plane figure formed by three or more lines segments that intersect only at their end points (vertices). |
| Ray | A part of a line that starts at one end point and it extends forever |
| Rectangle | a parallel line with four right angles. |
| Reflection | A transformation of a figure that flips the figure across a line. |
| Regular polygon | Polygon with congruent sides and angles. |
| Rhombus | a parallelogram with all sides congruent. |
| Right angle | An angle that measures 90 degrees |
| Right triangle | A triangle containing a right angle. |
| Rise | a vertical change when the slope of a line is expressed as a ratio “rise over run”. |
| Rotation | A transformation in which a figure is turned around a point. |
| Rotational Symmetry | A figure has rotational symmetry if it can be rotated less than 360 degrees around a central point and concide with original figure. |
| Run | The horizontal change when the slope of a line is expressed as the ratio "rise over run" |
| Scalene Triangle | A triangle with no congruent sides |
| Segment | A part of a line between two end points |
| Slope | A measure of the steepness of a line on a graph; the rise divided by the run |
| Square | A rectanhgle with four congruent sides |
| Supplementary angles | Two angles who measures have a sum of 180 degrees |
| Tessellation | A repeating pattern of plane figures that completely cover a plane with no gaps or overlaps |
| Transformation | A change in the size or postion in a figure |
| Translation | A movement of a figure along a straight line |
| Transversal | A line that intersects two or more lines |
| Trapezoid | A quadriladeral with exactly 1 pair of parellel sides |
| Triangle Sum Theorem | The theorem that states the measures of the angles in a triangle add up to 180 degrees |
| Vertical angles | A pair of opposite congruent angles formed by intersecting lines |
Created by:
smath77
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