e cost of fencing a rectangular field 54 m long and 36 m wide with steel at the rate of Rs. 3 per metreGiven ☆• Length of the Rectangular Field = 54 m• Breadth of the Rectangular Field = 36 m• Rate of the steel per METRE = Rs. 3To Find ☆• The cost of fencing the rectangular field Formula Used ☆• Perimeter of Rectangle = 2 × ( Length + Breadth )Solution ☆To find the cost of fencing the rectangular field, we need to first take out the perimeter of the field, and then multiply it with Rs. 3, so let's do it!Perimeter of Rectangle = 2 × ( Length + Breadth )Perimeter of Rectangle = 2 × ( 54 + 36 )Perimeter of Rectangle = 2 × 90Perimeter of Rectangle = 180 mNow, let's find out the cost of fencing!180 × 3 = ₹ 540∴ The cost of fencing the Rectangular Field is ₹ 540__________________________________________Perimeter of Square = 4 × sidePerimeter of Rectangle = 2 × ( Length + Breadth )Perimeter of Triangle = Sum of all SIDESAREA of Square = SIDE × sideArea of Rectangle = Length × BreadthVolume of Cube = side × side × sideVolume of Cuboid = Length × Breadth × HeightNote : We can also write the formula Area of Square = side × side as Area of Square = ( side )² and Volume of Cube = side × side × side as Volume of Cube = ( side )³____________________________________