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Triangles properties
- Sum of Angles of a Triangle
- Three Triangle Heights (altitudes)
- Area of a Triangle
- Area of Triangles with Fixed Perimeter
- Isosceles Triangle
- Isosceles Triangle Investigation
- Equilateral Triangle
- Construct an Equilateral Triangle
- Four Equilateral Triangles inside a Square
- Mid-Segments of a Triangle
- Inequalities in a Triangle - Relationship of Sides to Angles
- Triangle Inequality Investigation
- Observe location of the longest side and the largest angle.
- Triangle SSA
- SSA Testing Triangle Congruence ? Angle-Side-Side ?
- ASA - Triangle Angle-Side-Angle using Sliders
- AAA Triangle Investigation
- AAA Triangle Congruence Investigation: Angle-Angle-Angle
- Triangle AAA
- SAS - Triangle Side-Angle-Side using Sliders
- Side-Angle-Side Inequalities In Two Triangles
- SAS 6 unit, 57º, 7 units Solution
- SSS - Triangle Side-Side-Side using Sliders
- Triangle Congruence Investigation Given: Side-Side-Side
- Rolling a Circle Around the Inside of a Triangle
- Altitudes of a Triangle Investigation
- Medians of a Triangle
- Perpendicular Bisectors of a Triangle
- The Euler Line of a Triangle
- Circumcenter Google Earth
- Angle Bisectors of a Triangle
- Random Darts Hit Triangle inside Square
- Triangle's Squares Intro
- Squares of the sides of Triangles
- Shadows and Right Triangles
- Right Triangles - Pythagorean Theorem
- Right Triangle Diameter & Vertex Point On Circle
- Tessellate Equilateral Triangles
- Triangle Designs
- Triangle Designs v3
- Similar Triangles - Reflection in a Mirror
- Translate a Triangle, then Reflect it Across the x-Axis
- Translate and Reflect a Triangle : Problem N20
- Translation & Reflection of a Triangle
- Probability Dart Hits Triangle
- Net of a Triangular Prism
- Right Triangle with Ratios of a 55º Angle
- Unit Circle : Trig Functions : Special Triangles
- Volume of Cross Section - Isosceles Right Triangle
- Solid wt Circular Base & Equilateral Triangle Cross Section
- Volume of X-Section Isosceles Rt.Triangle iPad
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Triangles properties
Terry Lee Lindenmuth, David Grimm, Nov 3, 2016
Triangles: Investigations and Activities
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1. Sum of Angles of a Triangle
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2. Three Triangle Heights (altitudes)
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3. Area of a Triangle
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4. Area of Triangles with Fixed Perimeter
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5. Isosceles Triangle
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6. Isosceles Triangle Investigation
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7. Equilateral Triangle
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8. Construct an Equilateral Triangle
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9. Four Equilateral Triangles inside a Square
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10. Mid-Segments of a Triangle
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11. Inequalities in a Triangle - Relationship of Sides to Angles
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12. Triangle Inequality Investigation
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13. Observe location of the longest side and the largest angle.
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14. Triangle SSA
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15. SSA Testing Triangle Congruence ? Angle-Side-Side ?
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16. ASA - Triangle Angle-Side-Angle using Sliders
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17. AAA Triangle Investigation
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18. AAA Triangle Congruence Investigation: Angle-Angle-Angle
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19. Triangle AAA
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20. SAS - Triangle Side-Angle-Side using Sliders
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21. Side-Angle-Side Inequalities In Two Triangles
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22. SAS 6 unit, 57º, 7 units Solution
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23. SSS - Triangle Side-Side-Side using Sliders
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24. Triangle Congruence Investigation Given: Side-Side-Side
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25. Rolling a Circle Around the Inside of a Triangle
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26. Altitudes of a Triangle Investigation
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27. Medians of a Triangle
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28. Perpendicular Bisectors of a Triangle
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29. The Euler Line of a Triangle
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30. Circumcenter Google Earth
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31. Angle Bisectors of a Triangle
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32. Random Darts Hit Triangle inside Square
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33. Triangle's Squares Intro
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34. Squares of the sides of Triangles
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35. Shadows and Right Triangles
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36. Right Triangles - Pythagorean Theorem
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37. Right Triangle Diameter & Vertex Point On Circle
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38. Tessellate Equilateral Triangles
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39. Triangle Designs
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40. Triangle Designs v3
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41. Similar Triangles - Reflection in a Mirror
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42. Translate a Triangle, then Reflect it Across the x-Axis
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43. Translate and Reflect a Triangle : Problem N20
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44. Translation & Reflection of a Triangle
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45. Probability Dart Hits Triangle
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46. Net of a Triangular Prism
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47. Right Triangle with Ratios of a 55º Angle
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48. Unit Circle : Trig Functions : Special Triangles
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49. Volume of Cross Section - Isosceles Right Triangle
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50. Solid wt Circular Base & Equilateral Triangle Cross Section
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51. Volume of X-Section Isosceles Rt.Triangle iPad
Sum of Angles of a Triangle
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