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kymber
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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?
 2 years ago
 2 years ago
kymber Group Title
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?
 2 years ago
 2 years ago

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jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.2
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)
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.2
It turns out that the perimeters form the same ratio as the sides since the perimeter is simply the sum of all the sides
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.2
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
 2 years ago

kymber Group TitleBest ResponseYou've already chosen the best response.3
Okay thaanks :p
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.2
yw
 2 years ago
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