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Exterior Angle Sum Theorem
Author:
janetvmiller
Topic:
Geometry
,
Triangles
Drag point E to translate the triangle to the right. Move the slider to rotate the triangle
GeoGebra
What do you notice about the two interior angles with respect to the exterior angle?
New Resources
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Parallelograms: Quick Investigation
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探究由平行線和截線所成的角
Poorly Drawn Parallelograms
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y=mx+b
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