Question

please help me to solve this problem ​

Answer 1

Let it be 3x & 4x

Sum= 225cm

(3x)^2+(4x)^2=225

9x^2+16x^2=225

25x^2=225

x^2= 225/25

x^2=9

X=3

Therefore 3x= 9cm

4x= 12cm

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