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Across 7. an unproven statement that is based on observations 8. a ratio that describes how the dimensions in the drawing are related to the actual dimentions of the object 9. a logical arguement that shows a statement that is true 10. 2 congruent bases that lie in parallel planes 13. a 3D pyramid that has 4 congruent triangles 15. An _______ prism is a prism with lateral edges that are not perpendicular to the bases 16. segment that joins 2 nonconsectutive vertices 17. formed by negating both the hypothesis and conclusion 19. 9 sided figure 20. a polygon on a 3D shape is called the _______ surface

Down 1. a squared+ b squared= c squared is called the ______ theorem 2. the ratio of the corresponding lengths is called the scale ____ 3. a rule that can be proved 4. a rule that is accepted without proof 5. formed by switching the hypothesis and conclusion 6. a line that intersects 2 or more coplaner lines at different coordinates 11. 2 coplaner lines that don't intersect are called ____ lines 12. The ___ of a polyhedron is a two-dimentional representation of the faces of a poyhedron 14. 3 sided figure 18. 2 non coplaner lines that don't intersect are called ___ lines