1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Vocabulary Triangle Algebra MidsegmentsInequalities Relationships In Triangles

2. A segment whose endpoints are at the vertex of a triangle and the midpoint of the side opposite is a… Vocabulary 100

3. Median

4. A perpendicular segment from a vertex to the line containing the side opposite the vertex is called a(n)… Vocabulary 200

5. Altitude

6. A point where three lines intersects is called a(n)… Vocabulary 300

7. Point of Concurrency

8. Vocabulary 400 The point of concurrency of the angle bisectors of a triangle is called the…

9. Vocabulary 400 Incenter

10. Vocabulary 500 The point of concurrency of the altitudes of a triangle is called the…

11. Vocabulary 500 Orthocenter

12. Triangle Algebra 100 Find the slope through the points (2a, -b) and (-7a, -2b)

13. Triangle Algebra100

14. Triangle Algebra 200 Find the midpoint between the points (2a, -b) and (-6a, -7b)

15. Triangle Algebra 200

16. Triangle Algebra 300 Find the equation of the median from A to in if the coordinates of the vertices are:

17. Triangle Algebra 300

18. Triangle Algebra 400 Find the equation of the altitude drawn from vertex A.

19. Triangle Algebra 400

20. , and are vertices of triangle PQR. Find the equation of the perpendicular bisector of. Triangle Algebra 500

21. Midpoint of Triangle Algebra 500

22. Midsegments 100 Find the value of x.

23. Midsegments 100

24. Midsegments 200 Find the value of x.

25. Midsegments 200 60° Equilateral Triangle 5 5

26. Midsegments 300 Find the perimeter of triangle ABC.

27. 6 7 5 Midsegments 300 Perimeter = 18

28. Midsegments 400 Find the values of x and y.

29. Midsegments 400

30. Midsegments 500 Marita is designing a kite. The kites diagonals are to measure 64 cm and 90 cm. She will use ribbon to connect the midpoints of its sides that form a pretty rectangle inside the kite. How much ribbon will Marita need to make the rectangle connecting the midpoints?

31. Midsegments 500 The red segments are midsegments of the diagonal that measures 64 cm, so they measure 32 cm. The green segments are midsegments of the diagonal that measure 90 cm, so they measure 45 cm. So the perimeter is

32. Inequalities 100 Two sides of a triangle have measure of 12 meters and 22 meters what are the possible measures of the 3 rd side?

33. Inequalities 100

34. Inequalities 200 Name the sides in order from smallest to largest.

35. Inequalities 200

36. Inequalities 300 If KL = x – 4, LM = x + 4 and KM = 2x – 1, and the perimeter of the triangle is 27, find the order of the angles from smallest to largest.

37. Inequalities 300

38. Inequalities 400 Name the longest segment in the triangle below.

39. Inequalities 400 k a t i e 55° 42° t < a < k i < e < t

40. Describe the Exterior Angle Inequality Theorem based on the diagram below. Inequalities 500 1 2 3 4

41. The measure of an exterior angle of a triangle is greater than each of its remote interior angles.

42. If a point lies on the perpendicular bisector of a segment, then it is _________ from the endpoints of the segment. Relationships in Triangles 100

43. equidistant Relationships in Triangles 100

44. Solve for x. Relationships in Triangles 200

46. Point C is the centroid of triangle DEF. If GF, G being the midpoint of segment DE, is 9 meters long, what is the length of CF? Relationships in Triangles 300 D G E F C GF = 9

47. Relationships in Triangles 300

48. Relationships in Triangles 400 Find the coordinates of the circumcenter of if

49. Relationships in Triangles 400 In a right triangle, the coordinates of the circumcenter can be found at the midpoint of the hypotenuse:

50. Relationships in Triangles 500 If line DB is the perpendicular bisector of triangle DOG, find the value of x and y given: DO = 5x +15, DG = y + 4, D O G B

51. Relationships in Triangles 500