Across
- 3. angle-and angles whose vertex is on a circle and whose sides contain chords of the circle
- 5. of a proportion-in a proportion such as a/b= c/d b and c are the means
- 7. prism with six square faces
- 8. a three dimensional figure with a circular base and a curved lateral surface that connects the base to a point called the vertex
- 10. a diagram of the faces of a three dimensional figure arranged in such a way that the diagram can be folded to form the three dimensional figure
- 12. mean- for positive numbers a and b the positive number x such that a/x = x/b
- 14. reasoning-the process of reasoning that begins with a true hypothesis and builds a logical argument to show that a conclusion is true
- 15. products-in a proportion the product of the mean and the product of the extremes
- 16. segment whose endpoints lie on a circle
- 19. proof-a proof in which the statement to be proven is false and a contradiction is shown
- 20. proof-a style of proof that uses coordinate geometry and algebra
Down
- 1. of a prism-one of the two parallel faces of a prism
- 2. of tangency- the point of intersection of a circle or sphere with a tangent line or plane
- 4. three dimensional figure with two parallel congruent circular bases and a curved lateral surface that connects the base
- 6. of a polyhedron- a flat surface of a polyhedron
- 9. of a three dimensional figure- a segment that is the intersection of two faces of a figure
- 11. of proportion- in a proportion such as a/b =c/d, a and d are the extremes
- 13. arc-the arc formed by an inscribed angle
- 17. from point to a line- the length of a perpendicular segment from the point to the line
- 18. of a polyhedron- a segment whose endpoint are vertices of two different faces of a polyhedron