Across
- 4. angles that are less than 90 degrees
- 6. angles that are 180 degrees (half of a circle)
- 7. lines that cross or touch one another and make one or more 90 degree angles
- 10. things measured in degrees, which are represented by the symbol °
- 11. angles that are exactly 90 degrees
- 12. When two or more lines cross each other and do not create a 90 degree angle.
Down
- 1. straight lines with a constant distance between them
- 2. a tool we use to measure angles
- 3. a straight one-dimensional figure of infinite length with arrows on either end
- 5. angles that are greater than 90 degrees
- 8. a line with a point on one end and an arrow on the other
- 9. a line with two points on either end