Ответ:
CK/KD=AK/KB
2/KD=4/9
KD =2*9/4=9/2=4.5
d = CK + DK =2+4.5=6.5
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Ответ:
CK/KD=AK/KB
2/KD=4/9
KD =2*9/4=9/2=4.5
d = CK + DK =2+4.5=6.5