# Trigonometry

Parent topic:Mathematics
• ### Parallelograms: IM 6.1.4

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GeoGebra Classroom Activities

• ### Finding Side Lengths of Triangles: IM 8.8.6

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GeoGebra Classroom Activities

• ### The Converse: IM 8.8.9

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GeoGebra Classroom Activities

• ### Applications of the Pythagorean Theorem: IM 8.8.10

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GeoGebra Classroom Activities

• ### Edge Lengths and Volumes: IM 8.8.12

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GeoGebra Classroom Activities

• ### Regular Tessellations: IM 8.9.2

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GeoGebra Classroom Activities

• ### Tessellating Polygons: IM 8.9.3

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GeoGebra Classroom Activities

• ### Drawing Triangles (Part 1): IM 7.7.9

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GeoGebra Classroom Activities

• ### Drawing Triangles (Part 2): IM 7.7.10

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GeoGebra Classroom Activities

• ### Triangles with 3 Common Measures: IM 7.7.8

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GeoGebra Classroom Activities

• ### Fractional Lengths in Triangles and Prisms: IM 6.4.14

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GeoGebra Classroom Activities

• ### Similar Polygons: IM 8.2.7

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GeoGebra Classroom Activities

• ### Similar Triangles: IM 8.2.8

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GeoGebra Classroom Activities

• ### Polyon Interior Angles: Investigations

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Tim Brzezinski

• ### Adding the Angles in a Triangle: IM 8.1.15

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GeoGebra Classroom Activities

• ### The Shadow Knows: IM 8.2.13

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GeoGebra Classroom Activities

• ### Meet Slope: IM 8.2.10

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GeoGebra Classroom Activities

• ### Side Length Quotients in Similar Triangles: IM 8.2.9

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GeoGebra Classroom Activities

• ### Parallel Lines and the Angle in a Triangle: IM 8.1.16

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GeoGebra Classroom Activities

• ### Bases and Heights of Triangles: IM 6.1.10

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GeoGebra Classroom Activities

• ### Formula for the Area of a Triangle: IM 6.1.9

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GeoGebra Classroom Activities

• ### Area of Triangles: IM 6.1.8

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GeoGebra Classroom Activities

• ### From Parallelograms to Triangles: IM 6.1.7

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GeoGebra Classroom Activities

• ### Mystery Scalar and Vectors Investigation

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Tim Brzezinski