Geometry Crossword

1. / A line segment that goes from one side of the circle to the other side.
5. / a curved line or segment of a circle
10. / The distance around the outside of a circle.
12. / A flat surface that keeps spreading in all directions forever.
14. / The value that shows the relationship of a circle's circumference to its diameter; it has an approximate value of 3.14 or the fraction 22/7
15. Angles / angles that are opposite from each other; formed from two intersecting lines
17. Lines / Two lines, that lie next to each other without ever getting close together or further apart.
18. Area / the sum of the areas of the lateral surfaces (only the sides, no bases) of a 3-D figure
19. / two rays with a common endpoint

2. / the distance across the circle through the center
3. / a line that intersects two or more other lines at different points
4. / A straight path that goes on forever in both directions.
6. / A line segment that joins two vertices of a shape by going through the middle of the shape.
7. Lines / Two lines that make right angles when they cross.
8. / The units used to measure an angle.
9. / the bottom side of a geometric figure from which the altitude or height can be constructed
11. / identical in form; coinciding exactly when superimposed.
12. / Any object made of at least three straight lines. There can be no gaps, no curves, and no lines that cross each other
13. / The angles and the overall appearance of the shapes are the same, but one object is larger than the other.
16. / A line segment that connects the center of the circle to a point on the circle.