12. a) Reproduce the indicated figure of a rectangle where LE = 6cm and EO = 4cm.
30 40
L
E
C
M
N
0
locate the
) and N(1;-1).
T?
eter of LENH .
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
L, N, O and E (the unit is lcm).
of origin 0.​