(5) Tap [OK].
• This draws triangle A'B'C', which is symmetrical to triangle ABC about the
(6) Tap anywhere outside of the triangles to deselect the currently selected triangle. Next,
select triangle A'B'C'.
(7) Tap [Draw], [Construct], and then [General Transform].
(8) Now, to perform parallel displacement on triangle A'B'C' by 1 unit along the
y
-axis, input [1, 1].
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x
-axis.
x
- and