Question

sides of a rectangle park is 4:3. IF the area is 1728m^2 find the cost of fencing it at rupees 30 per meter

Answer 1

Answer:

let length be 4x and breadth be 3x

so area will be 12x²

12x²=1728

x²=1728/12

x²=144

x=12

length= 48

breadth = 36

perimeter = 2(48+36)=168

cost of fencing= 168×30= Rs.5040