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Math Vocab
Math
| Question | Answer |
|---|---|
| rectangle | a parallelogram w/ 4 right angles |
| ray | a part of a line that starts at one endpoint and extends forever |
| complementary angles | two angles whose measures add to 90 |
| center of rotation | the point about which a figure is rotated |
| congruent | having the same size and shape |
| correspondence | the relationship between 2 or mre objects that are matched |
| equilateral triangle | a triangle w/ 3 congruent sides |
| image | a figure resulting from a transformation |
| isosceles triangle | a triangle w/ at least 2 congruent sides |
| line | a straight path that extends w/o end in opposite directions |
| line of symmetry | the imaginary "mirror" in line symmetry |
| line symmetry | a figure has line symmetry if one half is a mirror-image of the other half |
| obtuse angle | an angle whose measure 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 | a quadrilateral w/ 2 pairs of parallel sides |
| perpendicular lines | lines that intersect to form right angles |
| plane | a flat surface that extends forever |
| point | an exact location is space |
| polygon | a closed plane figure formed by 3 or more line segments that intersect only at their endpoints (vertices) |
| vertical angles | a pair of opposite congruent angles formed by intersecting lines |
| rhombus | a parallelogram w/ all sides congruent |
| right angle | an angle that measures 90 |
| right triangle | a triangle containing a right angle |
| rise | the vertical change when the slope of a line is expressed as the 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 around a central point and coincide w/ the original figure |
| run | the horizontal change when the slope of a line is expressed as the ratio rise over run |
| scalene triangle | a triangle w/ no congruent sides |
| segment | a part of a line between 2 endpoints |
| semiregular tessellation | a tessellation formed w/ 2 or more regular polygons in which every vertex is identical |
| slope | a measure of the steepness of a line on a graph, the rise divided by the run |
| square | a rectangle w/ 4 congruent sides |
| supplementary angles | two angles whose measures have a sum of 180 |
| tessellation | a repeating pattern of plane figures that completely cover a plane with no gaps or overlaps |
| transformation | a change in size or position of a figure |
| translation | a movement (slide) of a figure along a straight line |
| transversal | a line that intersects two or more lines |
| trapezoid | a quadrilateral w/ exactly one pair of parallel lines |
| regular tessellation | a tessellation formed by using regular polygons |
| regular polygon | a polygon w/ congruent sides and angles |
| angle | a figure formed by 2 rays w/ a common endpoint called the vertex |
| acute triangle | a triangle w/ angles measuring less than 90 |
| acute angle | an angle that measures less than 90 |
| reflection | a transformation of a figure that flips the figure across a line |
| Triangle Sun Theorem | the theorem that states that the measures of the angles in a triangle add up to 180 |
Created by:
mdancer
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