Geometry

2. Definition of a ____, An angle measures 90°
4. A location with no size or shape
5. 2πr² or πd
6. a(b+c), then a(b+c)= ab+ac
9. A flat surface made up of 3 points and extends indefinitely in all directions
10. (x₁+x₂/2, y₁+y₂/2)
11. A line that intersects the circle in two points
12. If a=b, then a-c=b-c
18. An arc with a measure of less than 180°
19. A comparison of two or more quantities
24. A parallelogram with four right angles
25. √(x₂−x₁)²+(y₂−y₁)²
28. A chord that passes through the center
33. An angle with a vertex of the center and two sides that are radi
34. An angle with a vertex on the circle and two sides that are chords
36. A triangle with three different lengths
37. A line that extends indefinitely in one direction
38. If a=b, then 𝘢 may be replaced by 𝘣 in any expression or equation
40. Law of ___, Shows the proportional relationship between angles and their opposite sides
43. Points that lie on the same line
44. If AB ≅ CD and CD ≅ EF, AB ≅ EF
46. ___ lines, two lines that intersect at 90°
47. Made up of points with no thickness or width
48. An equation that states two ratios are equal
49. A triangle with all three equal sides

1. Angle of ____,when looking up to an object
3. _____ theorem, if two angles are complementary to the same angle
4. Line segments that will never intersect
7. A right triangle with 45°-45°-90°
8. Four congruent sides and diagnols are perpendicular
13. A segment with an endpoint on the circle
14. A triangle with two equal sides
15. The common endpoint of an angle
16. A set of angles that are next to each other and are supplementary
17. Two angles that are next to each other and share a common side
20. An intersection of two stays at a point
21. An angle that measures more than 90°
22. Parallelogram _____ theorem- If a quadrilateral is a parallelogram, its diagonals bisect each other
23. If AB ≅ CD, then CD ≅ AB
26. Any two angles that add up to 90°
27. A line that intersects the circle at exactly one place
29. A segment with endpoints at the center and on the circle
30. y-y₁=m(x-x₁)
31. Alternate interior angle to angle of elevation
32. If a=b, then a+c=b+c
35. Two lines that intersect at 90°,⊥
39. Angle _____, A ray that divides an angle into two equal halves
41. Only one pair of opposite sides are parallel and consecutive angles are supplementary
42. The set of points equidistant from a given point
45. A portion of the edge of the circle defined by two endpoints