Line x and line z are straight lines.
c
Which pair of angles are vertical?
La and d
Ob and 20
a and 20
Le and ce
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Nex
The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)