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math
Question | Answer |
---|---|
ray | a part of line that has one endpoint 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 both directions. |
perpendicular | lines,line segments,or rays are perpendicular if they form right angles. |
parallel | the same distance apart at every point. |
oblique | lines that are 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 angles. |
right angle | an angle that measures 90 degrees. |
straight angle | an angle of 180 degrees |
supplementary angles | angles having a sum of 180 degrees |
complimentary angles | angles that have a sum of 90 degrees |
opposite angle | when two lines intersect |
vertical angle | pairs of opposite angles formed by two intersecting lines. |
polygon | a closed plane figure with sides made of straight line segments. |
congruent | exact same size exact same shape. |
isosceles triangle | a triangle with at least 2 congruent sides. |
equalateral | having all equal sides. |
scalene triangle | a triangle with no congruent sides. |
acute triangle | a triangle with three acute sides. |
obtuse triangle | a triangle with one obtuse angle. |
right triangle | a triangle with a right angle |
right trapizoid | a trapezoid with at least one right angle. |
circle | a shape that is round. |
reflexangle | an angle greater than 180 degrees |