Geometry Crossword

2. Plane figure that has at least three straight sides and angles
6. A figure that has four straight sides
9. Triangle with two sides of equal length
12. The number that describes both the direction and the steepness of a line
13. Segment of a circle's circumference
15. Shorter segment of a right triangle that isn't the hypotenuse
16. Exactly equal in size and shape
18. Formed by two chords inside a circle that share an endpoint with each other
19. The longest side of a right triangle
20. Triangle with one angle measuring more than 90 degrees
21. Line or ray that divides an angle in half
22. Length of a line segment extending from the center of a circle to a point on its perimeter
23. The distance around a circle
24. The distance across the circle through the center

1. Flat, 2-dimensional surface
2. Lines on a plane that never intersect
3. Quadrilateral with four equal sides and four equal angles
4. Geometrical shape that is perfectly round, 3-dimensional, and circular
5. Angles on opposite sides of a transversal line but inside the two other lines
7. Branch of mathematics concerning the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs
8. Angles that have a common side and vertex, and don't overlap
10. The portion of a circle enclosed by two radii and an arc
11. Two angles that add up to 180 degrees
14. Equation that contains three terms connected by plus or minus notations
16. Two angles that have a sum of 90 degrees
17. Quadrilateral whose four sides can be grouped to make two pairs of equal-length sides that are adjacent to each other
25. Part of line with one fixed endpoint