The delivery truck drives at a constant speed. What is the truck's speed, in miles per hour, on the delivery route? Round the answer to the nearest whole number. Enter the answer in the box.

Answer:
Choose answer below
Step-by-step explanation:
The truck does 3 sides of the square   3 x 24 = 72
  and the truck does one entire diagonal of the square
     with side lengths 24
    diagonal = sqrt (24^2 + 24^2 ) = 33.94 miles
total miles 33.94 + 72 = 105.94 miles in 4.5 hours
  105.94 / 4.5 = 23.54 m/hr for the entire trip
The mph for the actual driving time (2.5 hours )
  105.94 / 2.5 = 42. 38 m/hr   for driving time only