Across
- 1. lines lines that are not parallel and do not intersect in space
- 2. a 2-D figure; the set of all points at a given distance from the center
- 4. a 3-D geometric figure with polygons or curves for the sides and bases
- 6. a quadrilateral with two pair of adjacent congruent sides
- 7. 2-D or 3-D figure having all congruent sides and all congruent angles
- 8. the top and bottom parallel polygonal faces
- 10. angle measuring exactly 180 degrees; makes a straight line
- 11. a 3-D figure; the set of all points at a given distance from the center
- 12. a quadrilateral with all congruent sides and all congruent angles
- 13. interior angles congruent angles formed by two parallel lines cut by a transversal; located on opposite sides of the transversal between the parallel lines
- 16. a cone or cylinder with circles for base(s)
- 18. meeting at a 90 degree angle
- 19. triangle a triangle with three acute angles
- 21. of the same size and shape
- 24. Theorem the sum of the squares of the legs of a right triangle equals the square of the hypotenuse; a2 + b2 = c2 where c is always the hypotenuse side
- 27. the perimeter of a circle
- 33. a simple closed two-dimensional shape made of line segments
- 34. the distance around a 2-D figure
- 35. a line segment connecting two non-adjacent vertices of a polygon
- 36. a 3-D geometric figure with an altitude not perpendicular to the base
- 37. the height of a 2-D or 3-D geometric figure measured perpendicularly from the center of the top face or point to the center of the base
- 38. faces the polygon shapes making up the sides of a polyhedron
- 39. a 3-D figure with parallel congruent polygon bases and sides made of parallelograms
- 40. a 3-D geometric figure with an altitude perpendicular to the base(s)
Down
- 1. triangle a triangle with three sides of different lengths
- 2. the point in the middle of the circle or sphere
- 3. polygon a line segment connecting any two points of the interior does not go outside the polygon; none of the interior angles is greater than 180 degrees
- 5. a quadrilateral with four congruent sides
- 7. a parallelogram with a right angle
- 9. triangle a triangle with two congruent legs
- 14. a cone or cylinder with base(s) that are not circles but ovals or other curvy shapes
- 15. triangle a triangle with three congruent sides
- 17. exterior angles congruent angles formed by two parallel lines cut by a transversal; located on opposite sides of the transversal outside the parallel lines
- 18. a quadrilateral with two pair of parallel sides
- 20. angles two or more angles that sum to 90 degrees
- 21. a 3-D figure with a circular or non-circular base and rounding sides rising to a point
- 22. triangle a triangle with one obtuse angle
- 23. curve a closed curve that does not cross itself
- 24. a 3-D figure with faces made of polygons
- 25. angles two or more angles that sum to 180 degrees
- 26. a 3-D figure with circular or non-circular parallel congruent bases and curving sides
- 27. angles congruent angles formed by two parallel lines cut by a transversal; positioned on matching "corners" of intersections
- 28. the distance from the center to the circle
- 29. triangle a triangle with three congruent angles
- 30. curve a curve that can be traced without lifting the pencil, has the same starting/stopping points and may cross itself (creates an inside and outside of the curve)
- 31. a line segment connecting two points of the interior can go outside the polygon; at least one of the interior angles is greater than 180 degrees
- 32. a 3-D figure with a polygon for a base and triangular faces meeting at a point at the top
- 34. lines lines that never intersect in a plane