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GeoGebra
GeoGebra Lesson
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GeoGebra
GeoGebra Lesson
Outline
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
Triangles properties
Author:
David Grimm
,
Terry Lee Lindenmuth
Topic:
Triangles
Triangles: Investigations and Activities
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
Next
Sum of Angles of a Triangle
New Resources
Right Triangle Inscribed in a Semicircle
繪畫垂直線
Midpoint Theorem (V2): Integer Solutions
Linear Equation Graphs: Thin Slice
Congruent Sides & Angles in △s: Exploration
Discover Resources
Projection 01
Midpoint Formula Review For Geometry Sem 1 Final
MAT.ALG.421, 310354, F2
Stopping distance modelling
Cone Cross-Sections
Discover Topics
Unit Circle
Surface
Difference and Slope
Confidence Interval
Expected Value
