已知△ABC三顶点坐标A(1,2),B(3,6),C(5,2),M为AB中点,N为AC中点,则直线MN的方程为( )
A.2x+y-8=0 | B.2x-y+8=0 |
C.2x+y-12=0 | D.2x-y-12=0 |
推荐试卷
已知△ABC三顶点坐标A(1,2),B(3,6),C(5,2),M为AB中点,N为AC中点,则直线MN的方程为( )
A.2x+y-8=0 | B.2x-y+8=0 |
C.2x+y-12=0 | D.2x-y-12=0 |
试题篮
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