Across
- 1. a collection of things
- 3. a representation of an unknown value
- 4. represented by ||
- 5. the side on the bottom of a triangle
- 7. two angles that make 90 degrees
- 8. the distance from the lowest point to the highest point
- 9. when two rays meet at a vertex
Down
- 1. two angles that make 180 degrees
- 2. a four-sided shape with one set of paralell lines
- 6. a form of mathematics that deals with unknowns