Why are the triangles congruent? A clockwise rotation of 90' and a reflection across
the x-axis maps ZR to ZR', ZS to ZS', and ZT to
ZT
3
2
T
A reflection across the x-axis maps ZR to ZR', ZS
to ZS', and ZT to ZT'.
11 R
S
3 4x
-2
a
-
1
0
2
S
Ń
R!
A translation up 2 and to the right 2 maps RS to
R'S', ZS to ZS', and ST to S'T'.
T
م بن طه
A counterclockwise rotation of 180 maps RS to
R'S, ZS to ZS', and ST to S'T'.
Done