(1)若MN//BC则DN=AM,
又AM=t,DN=BC+CD-1.5t,即
t=4+2-1.5t
t=2.4
(2)易知△MBP相似于△DPC,BM=4-t,DN=6-1.5t,
BM/DN=(4-t)/(6-1.5t)=2/3=DP/BP,所以P点不动
(3)
(1)若MN//BC则DN=AM,
又AM=t,DN=BC+CD-1.5t,即
t=4+2-1.5t
t=2.4
(2)易知△MBP相似于△DPC,BM=4-t,DN=6-1.5t,
BM/DN=(4-t)/(6-1.5t)=2/3=DP/BP,所以P点不动
(3)