1.∠GAF=45°
∵∠GAB=∠DAC
∴∠BAF+∠DAC=90°-45°=45°
即:∠GAF=∠BAF+∠GAB=45°
2.EF=FG
∵AG=AE ∠GAF=∠FAE AF共公线
∴△AFG与△AFE全等 (边,角,边)
即:EF=FG
1.∠GAF=45°
∵∠GAB=∠DAC
∴∠BAF+∠DAC=90°-45°=45°
即:∠GAF=∠BAF+∠GAB=45°
2.EF=FG
∵AG=AE ∠GAF=∠FAE AF共公线
∴△AFG与△AFE全等 (边,角,边)
即:EF=FG