| A | B |
|---|
| cartographer | a person that makes maps |
| population density | the amount of people is a certain location |
| acute angle | an angle that is less then 90 degrees |
| right angle | an angle that is axactly 90 degrees, also called a right or square angle |
| adjacent angle | angles that share a side and are next to each other |
| obtuse angle | an angle that is greater than 90 degrees and less than 180 degrees |
| reflex angle | an angle whose measure is greater than 180 degrees, but less than 360 degrees |
| vertical angle | another way to say opposite angle or angles that don't share sides |
| diameter | any line segment that passes through the center of the circle whose endpoints are on the circle |
| radius | a line segment from the center of the circle to any point on the circle |
| congruent figures | figures that have exactly the same size and shape |
| congruent | means the same |
| equilateral triangle | a triangle that has three sides of the same length |
| isosceles triangle | a triangle that has AT LEAST two sides of the same length |
| scalene triangle | a triangle that has NO side that are the same length |
| tessellation | an arrangement of closed shapes that cover a surface |
| regular polygon | a polygon in which all sides are the same length and all angles have the same measure |
| pentagon | a five sided figure |
| parallel sides | sides that will never meet and are side by side |
