Which pairs of polygons are similar?

Select each correct answer.









AngelRay  Nov 17, 2017

In order to determine which pairs of figures are indeed similar, you must compare the ratios of one side to another.


A) \(\frac{18}{27}=\frac{10}{15}\)


Simplifying both the fractions into simplest terms, \(\frac{2}{3}=\frac{2}{3}\), which indeed proves both figures to be similar.


B) Do the same thing with the rectangles.




Doing the exact process, \(\frac{7}{10}\neq\frac{7}{9}\), so these figures here are not congruent.


C) All equilateral triangles are similar.


D) Yet again, check the similarity by comparing the ratio.




Simplifying in simplest terms, \(\frac{3}{4}=\frac{3}{4}\), so this pair of figures are similar. 


A, C, and D are all pairs of figures that are similar.

TheXSquaredFactor  Nov 17, 2017

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