Question | Answer |
triangle | three-sided figures sum of angel 180 degree |
line | set of points contining in opposite direction |
ray | point going in one direction .------------> |
segment | straight line that has a start and end point (shortest path) |
angel | two rays extending from the same point |
right angel | an angle that measures 90 degree |
parallel lines | two line that run in the same direction and that do not touch |
perpendicular lines | lines that intersect to form right angles + |
rectangle | four-sided figure with four right angles 90 degree angles |
square | four equal sides 90 degree angles |
circle | a curved flat figure every point of which is the same distance from the center |
paralloligram | two sets of parallel sides |
trapezoid | |
cube | |
supplement | two angles total 180 degree |
compliment | two angles total 90 degree |
horizontal | straight line runs left to right or right to left |
vertical | straight line up and down |
acute | less then 90 degree |
obtuse | greater then 90 degree but less then 180 |
reflex | greater then 180 |
straight | angle that = 180 |
diameter | distance of circle across center |
radius | distance from center to the side of circle (half of diameter) |
perimeter | distance around a polygon (sum of the sides) |
area | measure of the surface of a 2-d shape (always squared units) |
volume | |
circumference | distance around circle |
polygon | closed shape made of straight lines |
regular polygon | closed shape all sides are equal |
vertex | point where two rays meet |
intersect | point at where to lines cross |
vertical angels | two angles that are a cross |