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sin(v+180)=-sin v , cos(v+180)=-cos v
Author:
Asum
opposite-angle identities
GeoGebra
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Variation Theory Parallelogram Proofs
Poorly Drawn Parallelograms
alg2_05_05_01_slider_practice_flvs
Parallelograms: Quick Investigation
Shadow of a Cube
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Incenter
Polynomial deg 3 exercise 1
Chapter 4 - Triangle Congruence - Geometry
Upper and Lower Sums
Problem 6_9