Ответ:24
Пошаговое объяснение:
S(ABSD)=4ha
S(ABE)=ha
S(ECF)=ha/2
S(FDA)=ha
Toist S(ABSD)-S(ABE)-S(ECF)-S(FDA)=S(AEF)=9=4ha-ha-ha/2-ha=3ha/2=9
ha=6
S(ABCD)=4ha=24
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Ответ:24
Пошаговое объяснение:
S(ABSD)=4ha
S(ABE)=ha
S(ECF)=ha/2
S(FDA)=ha
Toist S(ABSD)-S(ABE)-S(ECF)-S(FDA)=S(AEF)=9=4ha-ha-ha/2-ha=3ha/2=9
ha=6
S(ABCD)=4ha=24