如图,△ABC≌△DEF,∠A=80°,∠ABC=60°,则∠F=______度.
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如图,△ABC≌△DEF,∠A=80°,∠ABC=60°,则∠F=______度.![魔方格](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027043054-60787.png) |
答案
∵△ABC≌△DEF,∠A=80°,∠ABC=60°, ∴∠D=∠A=80°,∠DEF=∠ABC=60°, ∵∠F+∠D+∠DEF=180°, ∴∠F=40°, 故答案为:40. |
举一反三
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如图,△ABC≌△EFC,CF=3cm,CE=4cm,∠F=36°,则BC=______cm,∠B=______度.![魔方格](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027043043-92439.png) |
如图,已知△ABC≌△BAD,A和B、C和D是对应顶点.如果AB=6,BD=5,AD=4,那么BC的长度是______.![魔方格](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027043035-12100.png) |
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