Geometry Crossword

3. / The bottom side of a geometric figure from which the altitude or height can be constructed.
5. / The approximate value of 3.14 or the fraction 22/7.
6. / A line segment that goes from one side of the circle to the other side.
11. Lines / Two lines, that lie next to each other without ever getting close together or further apart.
13. / Any object made of at least three straight lines. There can be no gaps,no curves,and no lines that cross each other.
14. Lines / Two lines that make right angles when they cross.
16. / Two rays with a common endpoint.
19. / A line that intersects two or more other lines at different points.
20. / A closed plane curve consisting of all points at a given distance from a point within it called the center.
21. / The units used to measure an angle.

1. Area / The sum of the areas of the lateral surfaces (only the sides, no bases) of a 3-D figure.
2. / The distance around the outside of a circle.
4. / Identical in form; coinciding exactly when superimposed.
7. / The distance across the circle through the center.
8. / A line segment that joins two vertices of a shape by going through the middle of the shape.
9. / The angles and the overall appearance of the shapes are the same, but one object is larger than the other.
10. / A line segment that connects the center of the circle to a point on the circle.
12. Angles / Angles that are opposite from each other; formed from two intersecting lines.
15. / A flat surface that keeps spreading in all directions forever.
17. / A straight path that goes on forever in both directions.
18. / A curved line or segment of a circle.