the area of a square field is 1600 km 2 . how long will it take for a horse to run around at the speed of 16 km / h ?
explanation area of field = 1600 km 2 . then , each side of field = √ 1600 = 40 km distance covered by the horse = perimeter of square field = 40 × 4 = 160 km ∴ time taken by horse = distances / peed = 160 / 16 = 10 h answer b
divide(multiply(const_4, sqrt(1600)), 16)