the length of a rectangle is twice its breadth and one of its diagonal measures 3√5cm. the perimeter of rectangle is
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Let breadth be x
then length is 2x
√4x^2+x^2 = √5×x
√5×x=16√5
x=16
breadth = 16
length = 32
area= length×breadth
16×32= 512cm^2
then length is 2x
√4x^2+x^2 = √5×x
√5×x=16√5
x=16
breadth = 16
length = 32
area= length×breadth
16×32= 512cm^2
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