Similarity rate of similar triangles
First of all, we see that the vertices are corresponding, AC= 12, A 1C 1=8. This means that the similarity ratio of two similar triangles is 3:2!
at high proportion
Furthermore, since the height ratio of similar triangles should be 3:2, and AD has been given as 6 cm, we can easily calculate the length of A 1D 1 as 4 cm by using this ratio.
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