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# Similar Polygons

Similar polygons have the same shape, but not necessarily the same size. Are rectangles with dimensions 8 x 5 and 25 x 40 similar?

# Identify Similar Polygons

Are the rectangles with dimensions

$2 \times 5 \text{ and } 12 \times 9$

similar?

Quadrilaterals $$ABCD$$ and $$EFGH$$ satisfy $$AB = 2EF, BC = 2FG, CD =2GH, DA = 2HE$$.

Must they be similar?

Are the rectangles with dimensions

$8 \times 5 \text{ and } 25 \times 40$

similar?

Are the parallelograms with side lengths

$4 \times 15 \text{ and } 60 \times 16$

similar?

Consider parallelograms $$ABCD$$ and $$EFGH$$. We know that $$AB = 2, BC = 9, EF = 4, FG = 18$$, $$\angle ABC = 40^\circ$$ and $$\angle EFG = 140^ \circ$$.

Are these parallelograms similar?

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