Question

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Answer 1

Answer:

70 is the answer

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Answer 2

Answer:

70cm

Explanation:

Let the length and breadth be 4x and 3x

Using pythagoras theorem,

(25)²=(4x)²+(3x)²

625= 16x²+9x²

625= 25x²

x²=25

x=5

Length = 4*5 = 20cm

Breadth = 3*5=15cm

Perimeter = 2(l+b)

                 = 2(20+15)

                  = 2*35

                   = 70cm

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