EC=1/5 x AD
E是线段AD的中点,则AE = 1/2 x AD
AC = AE+EC = (1/5 + 1/2)AD = 7/10 X AD = 6CM
AD = 6X 10/7 = 8.57CM
BD = AB-AD = 10-8.57 = 1.43CM
很高兴为你解答,希望能够帮助到你.基础教育团队祝你学习进步!
不理解就追问,理解了请采纳!
EC=1/5 x AD
E是线段AD的中点,则AE = 1/2 x AD
AC = AE+EC = (1/5 + 1/2)AD = 7/10 X AD = 6CM
AD = 6X 10/7 = 8.57CM
BD = AB-AD = 10-8.57 = 1.43CM
很高兴为你解答,希望能够帮助到你.基础教育团队祝你学习进步!
不理解就追问,理解了请采纳!