| A | B |
|---|
| chord | line segment with endpoints on a circle |
| circumference | distance around a circle |
| coordinate plane | two number lines that cross at the origin |
| cubic unit | unit used to measure volume |
| diameter | line segment that passes through the center of a circle and has its endpoints on the circle |
| origin | point where the x and y axis cross on a coordinate plane |
| Pi | This symbol's value is about 3.14 |
| quadrant | one of the four parts into which a plane is divided by the coordinate axes |
| radius | a line segment with one endpoint at the center of a circle and the other endpoint on the circle |
| rectangular prism | three-dimensional shape with congruent rectangles for base and top, and four lateral rectangular faces |
| sector of a circle | pie-shaped piece of a circle |
