Geometry Extra Credit

2. a line segment whose endpoints are points on a circle
6. an angle formed by two chords that share a common end point on a circle
7. two lines on the same plane that never intersect
8. the ratio of a side on one figure to the corresponding side on another figure
12. a mnemonic for finding the slope of a line
14. the longest side of a right triangle
15. when two ratios are equal
16. an arc of a circle that measures 180°
19. the perimeter of a circle
21. the distance around a 2D shape

1. two lines that meet at a right angle
3. an angle whose measure is greater than 90 degrees and less than 180 degrees
4. a line that divides something into two equal parts
5. a line that touches a circle at just one point
7. the theorem that states a^2 + b^2 = c^2
9. angles that add up to 90°
10. any four sided figure
11. angles that add up to 180°
13. a mnemonic for sin, cos, and tan ratios
17. a line segment that connects the midpoints of two sides of a triangle or a trapezoid
18. an angle whose measure is less than 90 degrees
20. a line segment from a circle's center to its perimeter