This document defines and describes basic geometry terms related to lines, angles, triangles, quadrilaterals, and circles. It defines points, line segments, rays, intersecting lines, perpendicular lines, parallel lines, acute angles, obtuse angles, right angles, complementary angles, supplementary angles, triangles classified by angle size and side length, properties of quadrilaterals including rectangles, rhombi, trapezoids, and how to calculate areas and perimeters of basic shapes.

3. LINES

6. Rays A strait line that continues from a point J T

13. ANGLES

23. TRIANGLES

24. RIGHT The largest angle is angle exactly ninety degrees 45 45

25. OBTUSE The largest angle is over ninety degrees 100 40 40

26. ACUTE The largest angle is less than ninety degrees 45 55 80

27. SCALENE A triangle with no congruent sides 34cm 64cm 57cm

28. ISOSCELES A triangle with exactly two congruent sides 67cm 67cm 62cm

29. EQUILATERAL A triangle with three congruent sides. 68 68 68

30. SUM OF INTERNAL ANGLES The sum when you add all three sides of the triangle 65 68 67 65+68+67=200

31. PERIMETER The perimeter of a triangle is all the side added together 12 12 12 12 24+24=48

32. AREA OF A TRIANGLE The hight times width divided by two

33. QUADRILATERALS

34. QUADRILATERALS A polygon with four sides and four angles

35. TRAPIZOID A quadrilateral with exactly two parallel sides

36. PARALELLAGRAM A quadrilateral that has opposite sides that are parallel and congruent

37. RECTANGLE A parallelogram with four right angles

38. RHOMBUS A parallelogram with four congruent sides

39. SQUARE A rectangle with four congruent sides

40. AREA OF A RECTANGLE The area of a rectangle is the length times width or how many blocks are able the fit in it

41. AREA OF A SQUARE How long the width is X the length or how many blocks total can fit in there

42. AREA OF A PARELLELAGRAM The base times height

43. AREA OF A TRAPAZOID The area of this is the space inside the shape

44. PERIMETER OF A RECTANGLE To find the perimeter of a rectangle you add all of the sides together

45. PERIMETER OF A SQUARE To find the perimeter of a square you add all of the sides together

46. CIRCLES

47. CHORD A line segment with its endpoints on a circle

48. DIAMETER A line segment that passes through the center of a circle and has its endpoints on the circle

49. RADIUS A line segment with one endpoint at the center of a circle and the other endpoint on the circle

50. SECTOR A religion enclosed by two radii and the arc joining their endpoints

51. CIRCUMFERENCE The distance around a circle

52. AREA OF A CIRCLE The space inside of a circle

53. OTHER POLYGONS

54. HEXAGON A polygon with six sides

55. OCTOGON A polygon with eight sides

56. REGULAR POLYGONS A polygon with congruent sides and angles

57. THE END