Across
- 3. To simplify the algebraic expressions we use____ rule.
- 4. A ________ is a line with one end point.
- 5. A ________ is a closed shape which has three or more straight edges.
Down
- 1. An angle which is greater than 90 , is called an ___ angle.
- 2. In algebra a value that can be changed is called______.