Across
- 5. the length between two points
- 8. a quadrilateral with both pairs of opposite sides parallel
- 10. the amount of space a 3D object occupies
- 12. having the same size and shape
- 15. a transformation that turns a figure around a fixed point
- 16. a segment whose endpoints lie on a circle
- 17. a quadrilateral with exactly one pair of parallel sides
- 18. a line that intersects two or more other lines
- 22. all points equidistant from a center point
- 25. a statement accepted as true without proof
- 27. a closed plane figure with three or more sides
- 28. the distance around a circle
- 29. lines that intersect at a 90-degree angle
Down
- 1. a line segment passing through the center of a circle with endpoints on the circle
- 2. a line, ray, segment, or point that divides an angle or segment into two equal parts
- 3. the measure of the surface enclosed by a two-dimensional shape
- 4. a segment in a triangle joining a vertex to the midpoint of the opposite side
- 6. a logical argument that uses reasoning to show a statement is true
- 7. figures having the same shape but not necessarily the same size
- 9. a transformation that flips a figure over a line
- 11. a statement that can be proven true by reasoning and evidence
- 12. a pair of numbers defining a point’s position on a plane
- 13. a line segment from the center of a circle to a point on the circle
- 14. a polygon with three sides
- 19. formed by two rays or lines with a common endpoint
- 20. a point where two or more lines or edges meet
- 21. a perpendicular line segment from a vertex of a polygon to the line containing the opposite side
- 23. two or more lines in a plane that never intersect
- 24. the longest side of a right triangle
- 26. the measure of the steepness of a line