二、填空题(每题6分,共30分)-|||-6如图,已知 Delta ABC 的面积1.-|||-在图(1)中,若 dfrac (A{A)_(1)}(AB)=dfrac (B{B)_(1)}(BC)=dfrac (C{C)_(1)}(CA)=dfrac (1)(2), 则 _(Delta {A)_(1)(B)_(1)(C)_(1)}=dfrac (1)(4) ;-|||-A A A-|||-A2 A3-|||-A1 C1 C2 C3-|||-B B1 C B B2 C B B3 C-|||-(1) (2) (3)-|||-(第6题)-|||-在图(2)中,若 dfrac (A{A)_(2)}(AB)=dfrac (B{B)_(2)}(BC)=dfrac (C{C)_(2)}(CA)=dfrac (1)(3), 则 _(Delta {A)_(2)(B)_(2)(C)_(2)}=dfrac (1)(3);-|||-在图(3)中,若 dfrac (A{A)_(3)}(AB)=dfrac (B{B)_(3)}(BC)=dfrac (C{C)_(3)}(CA)=dfrac (1)(4), 则 _(Delta {A)_(3)(B)_(3)(C)_(3)}=dfrac (7)(16);-|||-按此规律,若 dfrac (A{A)_(8)}(AB)=dfrac (B{B)_(8)}(BC)=dfrac (C{C)_(8)}(CA)=dfrac (1)(9), 则 _(Delta {A)_(8)}(B)_(8)(C)_(8)= __-|||-7如图所示,O是正 Delta ABC 的边AC的中点,也是正 Delta (A)_(1)(B)_(1)(C)_(1) 的边A1C1的中点,则AA1:-|||-(B)_(1)= __ .-|||-8 如图,AD为 Delta ABC 的角平分线,AD的垂直平分线交BC的延长线于点F.若 dfrac (AC)(AB)=dfrac (3)(4), 则-|||-dfrac (CF)(BF) 的值为 __-|||-9 如图, Delta ABC 中, angle BAC=(90)^circ , AD是BC边上的高,E是BC边上的一点,过点E作AB、-|||-AC的垂线,垂足分别为点F、G,则 angle FDG= __ .-|||-A-|||-C1-|||-O-|||-A1 B1-|||-B C-|||-(第7题)-|||-A-|||-E G-|||-B D C F-|||-(第8题)-|||-A-|||-F-|||-G-|||-B D E C-|||-(第9题)-|||-10已知M、N分别在正方形ABCD的边DA、AB上,且 =AN, 过点A作BM的垂线,-|||-垂足为点P,则 angle APN:angle BNC= __ .