Os 12. a) Reproduce the indicated figure of a
rectangle where LE = 6cm and EO = 4cm.
L
E
С
1
0
N
cate the
ind N(1;-1).
b) Draw an orthogonal system with origin L
such that the axes of coordinates coincide
with the lines (LE) and (LN) respectively.
c) Give the coordinates of each of the points
I N. () and E (the unit is lcm).
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