根据勾股定理AB^2=BE^2+AE^2AE^2=8^2-(BC+CE)^2 =64-(6+CE)^2AC^2=AE^2+CE^2 4^2=64-(6+CE)^2+CE^2 16=64-36-12CECE=1DE=BC/2+CE =6/2+1 =4
