如图,已知AD=acm,AC=bcm,2BC=3AC,∠B=36°。∠D=117°,△ABC∽△DAC...
发布网友
共3个回答
热心网友
.(1)因为：△ABC∽△DAC
所以：AB/BC=DA/AC=>AB=3/2acm
(2)AB/AC=DA/DC=>DC=2/3bcm
(3)∠BAD=117°+36°=153°
热心网友
1.因为：△ABC∽△DAC
所以：AB/BC=DA/AC=>AB=3/2acm
2. 同理：AB/AC=DA/DC=>DC=2/3bcm
3.∠BAD=117°-36°=71°
热心网友
AB=acm
DC=bcm
∠BAD=153°
