I need help with this similar geometry question

Question

two squares are simular. the ratio of the length of square  B IS  3 : 5. If the length of square A is  18 meters , what is the perimeter of square  B ?

Answer 1

The ratio of the perimeters will be the same as the ratio of the length of the sides. so if x if perimeter of square B then

18 = 3

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x 5

x = 30

perimeter of square B s 30.