Triangles
1. Sum of Angles of a Triangle
2. Three Triangle Heights (altitudes)
3. Area of a Triangle
4. Area of Triangles with Fixed Perimeter
5. Isosceles Triangle
6. Isosceles Triangle Investigation
7. Equilateral Triangle
8. Construct an Equilateral Triangle
9. Four Equilateral Triangles inside a Square
10. Mid-Segments of a Triangle
11. Inequalities in a Triangle - Relationship of Sides to Angles
12. Triangle Inequality Investigation
13. Observe location of the longest side and the largest angle.
14. Triangle SSA
15. SSA Testing Triangle Congruence ? Angle-Side-Side ?
16. ASA - Triangle Angle-Side-Angle using Sliders
17. AAA Triangle Investigation
18. AAA Triangle Congruence Investigation: Angle-Angle-Angle
19. Triangle AAA
20. SAS - Triangle Side-Angle-Side using Sliders
21. Side-Angle-Side Inequalities In Two Triangles
22. SAS 6 unit, 57º, 7 units Solution
23. SSS - Triangle Side-Side-Side using Sliders
24. Triangle Congruence Investigation Given: Side-Side-Side
25. Rolling a Circle Around the Inside of a Triangle
26. Altitudes of a Triangle Investigation
27. Medians of a Triangle
28. Perpendicular Bisectors of a Triangle
29. The Euler Line of a Triangle
30. Circumcenter Google Earth
31. Angle Bisectors of a Triangle
32. Random Darts Hit Triangle inside Square
33. Triangle's Squares Intro
34. Squares of the sides of Triangles
35. Shadows and Right Triangles
36. Right Triangles - Pythagorean Theorem
37. Right Triangle Diameter & Vertex Point On Circle
38. Tessellate Equilateral Triangles
39. Triangle Designs
40. Triangle Designs v3
41. Similar Triangles - Reflection in a Mirror
42. Translate a Triangle, then Reflect it Across the x-Axis
43. Translate and Reflect a Triangle : Problem N20
44. Translation & Reflection of a Triangle
45. Probability Dart Hits Triangle
46. Net of a Triangular Prism
47. Right Triangle with Ratios of a 55º Angle
48. Unit Circle : Trig Functions : Special Triangles
49. Volume of Cross Section - Isosceles Right Triangle
50. Solid wt Circular Base & Equilateral Triangle Cross Section
51. Volume of X-Section Isosceles Rt.Triangle iPad
52. Area of Circle and Inscribed Triangle