Invariance of the sum of areas

Author:
Idan Tal
Topic:
Area

The applet illustrates the property: If K, I, N, G are the midpoints of a quadrilateral's sides AD, AB, BC, and CD, respectively, then, SAIFK + SFNCG = SIBNF + SKFGD.

The applet illustrates the property: If K, I, N, G are the midpoints of a quadrilateral's sides AD, AB, BC, and CD, respectively, then, SAIFK + SFNCG = SIBNF + SKFGD.

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