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math games
| Question | Answer |
|---|---|
| ray | a part of a line that has one end point and extends without end in one direction |
| angle | a figure formed by two rays or line segments with a common end point |
| line | a straight path that goes on forever in opposite directions |
| perpendicular | lines, line segments, or rays are perpendicular because they form right angles |
| parallel | the same distance apart at every point |
| oblique | not parallel or perpendicular |
| intersect | to cut or divide by passing through or across |
| protractor | a tool used to measure angles |
| degree | a unit for measuring nagles |
| right angle | an angle that measures 90 degrres |
| straight angle | an angle of 180 degrees |
| supplementary angle | angles having a sum of 180 |
| complementary angles | angles having a sum of 90 |
| opposite angle | when 2 lines intersect |
| vertical angle | pairs of angles formed by intersecting line . |
| polygon | a closed plane figure made of straight lines |
| congruent | exactly same size and same shape |
| isosceles triangle | a triangle with at least 2 congruent sides |
| equilateral triangle | having all equal sides |
| scalene triangle | a triangle with at no equal sides |
| acute triangle | a triangle with three acute angles |
| obtuse triangle | a triangle with one obtuse angle |
| right triangle | a triangle with one right angle |
| right trapezoid | a trapezoid with at least one right angle. |
| reflex angle | an angle greater than 180 degrees, but 360 degrees |
| circle | a plane figure that forms a closed path so that all the points on a path are the same distance from a point called a center. |
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