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Circles,Lines,angles
math
Question | Answer |
---|---|
Ray | A part of a 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 endpoint |
line | A straight path that goes on forever in opposite directions |
perpendicular | Lines,line segments, or rays are perpendicular if they form right angles |
parallel | The same distant 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 also a unit measuring temperature |
right angle | An angle that measures 90 degrees |
straight angle | An angle of 180 degrees |
supplementary angles | Angles have a sum of 180 degrees |
complementary angles | angles having a sum of 90 degrees |
Vertical angles | pairs of opposite formed by intersecting lines |
opposite angles | when two lines intersect |
polygon | A closed figure with sides made of straight line segments |
congruent | exactly the same size and shape |
isosceles triangle | a triangle with at least two congruent sides |
equilateral triangle | having all equal sides |
scalene triangle | A triangle with no equal sides is a scalene triangle |
acute triangle | a triangle with three acute angles |
obtuse angle | a triangle with one obtuse angle |
right triangle | a triangle with one right angle |
right trapezoid | a trapezoid with least one right angle |
circle | A plane figure that forms a closed path so that all the points on the path are the same distance from a point called the center |
reflex circle | an angle greater than 180 degrees |