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kymber
HELP ME PLEASE ಥ_ಥ The ratio of the areas of two similar polygons is 16:25. If the perimeter of the first polygon is 20 cm, what is the perimeter of the second polygon?
If the ratio of the two areas is 16:25, then the ratio of the sides is 4:5 (you take the square root of each component)
It turns out that the perimeters form the same ratio as the sides since the perimeter is simply the sum of all the sides
we know that the ratio of the perimeters is 4:5, so 4/5 = 20/x Solve this for x to find the perimeter of the second polygon