2 Answers

Tanzeel Ur Rahman · Answer 1 · 2019-01-19T21:25:51+0000

the correct question in the attached figure

we know that
if the triangle ABC was rotated resulting in triangle EFD it implies that it retained it's original dimensions.

This means that ABC is proportional to EFD

hence
AB=EF-------> 4.2 cm
BC=FD-------> 3.6 cm
AC=ED------ > 4.5 cm

the answer is
CB=3.6 cm

If EF = 4.2 cm, DF = 3.6 cm, and DE = 4.5 cm, what is CB?-example-1

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