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math unit 4
| Question | Answer |
|---|---|
| ray | a part of a line that has one end piont |
| angle | a figure formed by to rays or line segments with a common end point. |
| line | a straight path that goes on forever in both directions. |
| perpendicular | lines,line segments,or rays that from a right angle |
| parallel | two lines that will never intersect |
| oblique | lines that are not perpendicular or parallel |
| intersect | to cut or divide by passing trough or across |
| protrator | a tool to measure angles |
| degree | a unit for measuring angles |
| right angle | a 90 degree angle |
| straight angle | a 180 degree angle |
| supplementary angles | angles that the sum is 180 degrees |
| complementary angles | angles that the sum is 90 degrees |
| supplementary degrees | degrees that have a sum of 180 degrees |
| complementary degrees | degrees that add up to 90 degrees |
| polygon | a closed lined figure with straight sides |
| congruent | exactly the same size a shape |
| isosceles triangle | a triangle with at least 2 congruent sides |
| equilateral triangle | a triangle with equal sides |
| scalene triangle | a triangle with no equal sides |
| acute angle | a angle less then 90 degrees |
| obtuse angle | a angle bigger 90 dergees |
| right angle | a 90 degree angle |
| right trapeziod | a trapezoid with at least 1 right angle |
| circle | a plain figure that forms a closed path. |
| reflex angle | a angel great than 180 degrees |
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