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<MDN wanted, MN=MD , square related

Source: Moldova JBMO TST 2013 2.3

July 10, 2020

geometrysquareequal segmentsangle

Problem Statement

The points

M

and

N

are located respectively on the diagonal

(AC)

and the side

(BC)

of the square

ABCD

such that

MN = MD

. Determine the measure of the angle

MDN

.

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