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eBook
Ck 12: Interactive Geometry: 1.5 Quadrilaterals eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 1.5 Quadrilaterals

For Students 9th - 10th Standards
Explore and measure a variety of quadrilaterals.
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eBook
Ck 12: Interactive Geometry: 1.4 Triangles eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 1.4 Triangles

For Students 9th - 10th Standards
Explore and measure a variety of triangles.
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Activity
Aaa Math: Finding the Third Angle of a Triangle Activity
AAA Math

Aaa Math: Finding the Third Angle of a Triangle

For Students 9th - 10th Standards
Finding the third angle of a triangle becomes easier by the explanation and examples presented.
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Unit Plan
George W. Hart: Polygons Unit Plan
Other

George W. Hart: Polygons

For Students 9th - 10th Standards
This personal site presents some general information about polygons.
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