and are the centers of the orange square and the green square. is the midpoint of . . Calculate
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If a is the distance from the center of smaller square to the edge, and b is the same for the larger square then:
Distance A B = 2 a + 2 b = 2 ( a + b ) .
Distance M N = m = average of a and b = 2 a + b
Therefore M N A B = 2 a + b 2 ( a + b ) = 4