СÕý·½Ðεı߳¤Îª10ÀåÃ×,´óÕý·½Ðεı߳¤Îª15ÀåÃ×,ÇóÒõÓ°²¿·ÖfeoµÄÃæ»ý
СÕý·½Ðεı߳¤Îª10ÀåÃ×,´óÕý·½Ðεı߳¤Îª15ÀåÃ×,ÇóÒõÓ°²¿...
ÒòEF¡ÎCG,¹ÊFO/OI=EF/GI=15/9=5/3,ÓÚÊÇS¡÷EFO=(5/8)S¡÷EFI=(5/16)SÕý·½ÐÎCEFG=5/16¡Á225=1125/16ƽ·½ÀåÃס
ÒòEF¡ÎCG,¹ÊFO/OI=EF/GI=15/9=5/3,ÓÚÊÇS¡÷EFO=(5/8)S¡÷EFI=(5/16)SÕý·½ÐÎCEFG=5/16¡Á225=1125/16ƽ·½ÀåÃס