the area of a square field is 576 km 2 . how long will it take for a horse to run around at the speed of 12 km / h ?
"area of field = 576 km 2 . then , each side of field = √ 576 = 24 km distance covered by the horse = perimeter of square field = 24 × 4 = 96 km ∴ time taken by horse = distances / peed = 96 / 12 = 8 h answer c"
divide(multiply(const_4, sqrt(576)), 12)