24.如圖,A(4,4),AB⊥y軸于點(diǎn)B,點(diǎn)C在線(xiàn)段OB上運(yùn)動(dòng)(點(diǎn)C不與O,B重合),CD⊥AC,且CD=AC.
(1)如圖1,當(dāng)點(diǎn)C的坐標(biāo)為(0,3)時(shí),
①求點(diǎn)D的坐標(biāo);
②設(shè)CD與x軸交于點(diǎn)M,求△OMC的面積;
(2)如圖2,C是OB的中點(diǎn),過(guò)點(diǎn)B作BF⊥AC于點(diǎn)E,BF與OA交于點(diǎn)F,求證:∠AFB=∠OFC.