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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. |