Question

The length and breadth of a rectangular plot are in the ratio 9:5. If its perimeter is 280m, find its area

Answer 1

perimeter of rectangle equal to 12 + be costly let the 9 ratio 5 be the value of x as 9X and 5x and put in the formula of 2(l b then after coming the value of an lnb for the formula of area of rectangle that is l x b

Answer 2

Let length= 9x

Breadth = 5x

Perimeter= 2( l+b)

2(.9x+5x)= 280

2* 14x= 280

28x=280

x=280/28=10

Length = 9*10=90

Breadth =5*10=50

Area of rectangle= l* b

90*50= 4500 sq m