Geometry Project

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Across 1. A triangle that contains a right angle. 3. The steepness of a line expressed as a ratio, using any two points on the line. 8. The horizontal axis in a coordinate plane. 10. A letter used to represent a number value in an expression or an equation. 11. Part of a line, with one endpoint, and extending to infinity in one direction. 12. Two angles are supplementary if their sum is 180 degrees. 14. A triangle with at least two equal sides. 15. A triangle with an obtuse angle. 16. A flat surface that stretches into infinity. 21. A triangle each of whose angles measures less than 90 degrees. 22. A point on a line segment that divides the segment into two congruent segments. 23. For a three-dimensional figure, the sum of the areas of all the faces. 24. A three-sided polygon. 25. The vertical axis in a coordinate system.

Down 1. A parallelogram with four equal sides. 2. A triangle that has three equal sides. 4. A straight set of points that extends into infinity in both directions. 5. A squared + B squared = C squared 6. Two angles whose sum is 90 degrees. 7. A transformation, or change in position, resulting from a slide with no turn. 9. A triangle with three unequal sides. 13. The ratio of the circumference of a circle to its diameter. 17. A polygon with 4 sides. 18. The side opposite the right angle in a right triangle. 19. The total number of successful events divided by the total number of possible events. 20. A equation that states a rule or a fact.

The look has changed! Some of the puzzles that people list for the public get indexed by the search engines (like Google). Some people find those puzzles and cannot figure out how to make a puzzle of their own. So this page now has the navigation sidebar.

Use the "Printable HTML" button to get a clean page, in either HTML or PDF, that you can use your browser's print button to print. This page won't have buttons or ads, just your puzzle. The PDF format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The PDF takes awhile to generate. Don't panic!