Question

the length of a rectangular is three times of its width.if the length of the diagonal is 8root 10 m.then the perimeter of the rectangle is

Answer 1

Let breadth be x
therefore length = 3x
now , diagonal = 8 root 10
x square + 3x square = 8 root 10 whole square
therefore x = 2 root 2
therefore perimeter = 16 root 2
hope it help
please mark it as brainliest