Why same areas? (3)

Argomento:Area

ABCD is a rectangle, and ABE, BDF, DCH, CAG are equilateral triangles. Why are the areas of the different colors the same? (Hint: Try to resize ABCD to see anything is keeping unchanged)

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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Traffic Cone
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Graphical solution of ax² + bx + c = k
Sketching Vector Function (1)

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metafora
Right Triangle Trigonometry
cubic graph with slider
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Barycentric coordinates for Nagel point of a triangle

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