220c的精选

问题详情：已知a,b,c是△ABC的三边,a,b满足|a-4|+(b-2)2=0,c为奇数,求△ABC的周长.【回答】解:∵|a-4|+(b-2)2=0,∴a-4=0且b-2=0,∴a=4,b=2,∴2<c<6.∵c为奇数,∴c=3或5,∴△ABC的周长为4+2+3=9或4+2+5=11.知识点：与三角...