Geometry

2. A flat surface made up of points. It extends in all directions
5. An equation that states two ratios are equal. It can be written as a/b = c/d
6. Pair Adjacent angles that are supplementary combined. They form a straight line add up to 180
10. The study of triangle measurements. 3 of the trigonometric's are Sine, Cosine, and Tangent
11. A closed figure formed by three or more line segments, called sides. Use S=(n-2)180 to find interior angles.
14. Angles Two angles directly across from each other on intersecting lines. These angles are always congruent
16. Lines Two lines that never intersect. The symbol would be II
17. Midsegment A segment connecting the midpoints of two sides of the triangles. Written as DE - on top.
19. A quadrilateral in which both pairs of opposite sides are parallel. Opposite sides are congruent.
20. Theory It is used to find missing side length on a right triangle. Formula is a^2 + b^2=C^2

1. A _______ is a location with no size or shape. You can name a ___with one Uppercase letter.
3. The intersection of two rays at an endpoint. It can be written as <ABC
4. angles Two angles with measures that sum to 90 degrees. They do not have to be adjacent.
7. A comparison of two quantities. Can be represented by a/b, a:b, and a to b
8. A ____ is made up of points with no thickness or width. You can name a __ with two uppercase letters
9. A line that extends indefinitely in one direction. It is written like this EF with → on top
12. angles Two angles with measures that sum to 180 degrees. They do not have to be adjacent.
13. Polygon Polygons with the same shape but different size. Corresponding angles are congruent
15. Angles Two angles directly across from each other on intersecting lines. These angles are always congruent
18. The common endpoint of an angle. Where the sides intersect