Question

please give give the answer of my question
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Answer 1

let the sides of rectangle be 3x and 4x

angles formed by the rectangle of side is 90°

therefore,

by pythagoras theorem

(3x)^2+(4x)^2=10

9x^2+16x^2=10

25x^2=10

x^2=10/25

x^2=2/5

x=root of (2/5)

3x=3×(root of 2/5)

4x=4×(root of 2/5)