EA = EC = √(8²+4²) = √(64+16) = √80 = 4√5 см
BD = √(4²+4²) = 4√2 см
ED = √(8²+(4√2)²) = √(64+16*2) = √96 = 4√6 см
BM = 4√2/2 = 2√2 см
EM = √(8²+(2√2)²) = √(64+4*2) = √72 = 6√2 см
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AB = √(4²+4²) = 4√2
S = 1/2*AC*AB = 1/2*AB*CZ
CZ = 2√2
MZ = √((2√2)²+(2√7)²) = √(4*2 + 4*7) = √(4*9) = 2*3 = 6 см
