Across
- 2. an angle less than 90 degrees but greater than 0 degrees
- 6. the amount of space within the perimeter of a 2D shape
- 8. curve with no endpoints and which completely encloses an area.
- 10. a quadrilateral with all equal sides
- 11. one of the lines of light that appear to radiate from a bright object
- 12. the perimeter of a circle
- 14. two line segments which cross to form 90 degree angles
- 16. Two figures that are congruent
- 19. exceeding 90 degrees but less than 180 degrees.
Down
- 1. A=2(1+2)a2
- 3. a 90 degree angle
- 4. D=2r
- 5. a figure having two parallel & non-parallel sides.
- 7. P = (L + W) × 2
- 9. a triangle in which all three sides have the same length
- 13. a straight line segment whose endpoints both lie on a circular arc
- 14. V=lwh/3
- 15. the intersection point of two sides of a plane
- 17. A location
- 18. a term used to describe what a 3D shape would like like if it was opened out and laid flat