Across
- 2. the middle point of a line segment
- 3. to put something in a particular order
- 5. a quadrilateral with three right angles
- 9. the bottom side of a triangle
- 10. the sum of all the side lenghs outside of a circle
- 11. an angle that bigger than 180 degrees but smaller than 360 degrees
Down
- 1. two straight lines that perpendicular to the same line
- 2. a number that formed by a whole number and a fraction
- 4. the average of a set of numbers
- 6. the longest side in a right triangle
- 7. a three-dimensional graphics like a ball
- 8. two line segments meet at a point