(1)A(0,3)B(-3,1)C(-2,-1)
D(0,-2)E(6,0)F(4,4)
(2)∵D我位似中心,∴D的坐标不变.
M(3,-1)N(2,1)
其中Mx=6÷2=3,My=(-2)÷2=-1,
Nx=4÷2=2,Ny=(4+(-2))÷2=1.
(3)S△ABC=4
S△DEF=14
S△ABC:S△DEF=2:7.:.
(1)A(0,3)B(-3,1)C(-2,-1)
D(0,-2)E(6,0)F(4,4)
(2)∵D我位似中心,∴D的坐标不变.
M(3,-1)N(2,1)
其中Mx=6÷2=3,My=(-2)÷2=-1,
Nx=4÷2=2,Ny=(4+(-2))÷2=1.
(3)S△ABC=4
S△DEF=14
S△ABC:S△DEF=2:7.:.