2PP: Viewpoint on a semicircle

Author:loganm

Using the fact that a triangle inscribed in a circle with one side on a diameter is a right triangle, we find the viewpoint is on a semicircle between the principle vanishing points!

New Resources

Isosceles Right Triangle
繪畫垂直線
Slope Illustrator (2)
Perpendicular Lines: Quick Exploration
Angle Addition Postulate (V2) - Integer Solutions

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Graph of modulus function
day 82 (5)
Kopie von Angry Birds
KreisAufbiegen03'in kopyası
Negative Rational Exponents: IM Alg2.3.5

Discover Topics

Reflection
Algebra
Numbers
Statistical Characteristics
Unit Circle