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Sinus, Cosinus and Tangens in the Unit Circle
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This model shows the relation of sinus, cosinus and tangens in the Unit Circle with a triangle.
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- Source
- Printables
- Category
- Math
- License
- Creative Commons — Attribution — NoDerivatives
This model shows the relation of sinus, cosinus and tangens in the Unit Circle with a triangle.
It shows why sin(45°) is approx. 0.707, cos(45°) is approx. 0.707 and tan(45°) = 1. It's exact, though you have to measure from the center point to inner part of the outer circle (see picture below).