Question

in□ABCD AB:BC=8:5. if AB=40,find perimeter of ABCD

Answer 1

If Ab is equal to 40 then 8×5 is 40
5×5=25
2(l+b)
2(40+25)
2(65)
130

Answer 2

Let AB be 8x and BC be 5x
So ATQ
8X=40
X=5
So AB=40cm
BC=25 cm

Perimeter =2(l+b)
=2(40+25)
=130 cm


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