a rectangular farm has to be fenced one long side , one short side and the diagonal . if the cost of fencing is rs . 13 per meter . the area of farm is 1200 m 2 and the short side is 30 m long . how much would the job cost ?
"explanation : l * 30 = 1200 è l = 40 40 + 30 + 50 = 120 120 * 13 = 1560 answer : option b"
multiply(add(add(30, divide(1200, 30)), sqrt(add(power(30, 2), power(divide(1200, 30), 2)))), 13)