Question

Michael applied a transformation to triangle ABC to obtain triangle A’B’C the two triangles are not congruent.which of the following could be the transformation Michael applied ??


HELP !!!!!

Answer 1

B) dilation

this transformation changes the shape's size (making it smaller/larger) whilst the others keep the shape congruent (same shape, same size)

Answer 2

When two shapes are similar but not congruent, it means the transformations performed on the shapes is non-rigid. The transformation that Michael can use to obtain a non-congruent triangle for is (b) dilation.

A non-rigid transformation is such that changes the side lengths of a shape. An example is dilation.

Because the resulting triangle $\triangle A'B'C'$ must not be congruent, then, Michael can dilate the original $\triangle ABC$ to give the new triangle $\triangle A'B'C'$

See attachment for an illustration of dilation

Hence, (b) is correct

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