8、∠BDC=∠A+∠ACD=62°+35°=97° ∠BFD=180°-∠BDC－∠ABE＝180°
-97°-20°=63° 8、∠BDC=∠A+∠ACD=62°+35°=97° ∠BFD=180°-∠BDC－∠ABE＝180°
-97°-20°=63°