Answer: 56 inches
Step-by-step explanation:
Here, the length of the back of the truck = 33 inches,
The length of the ramp = 65 inches.
Let x be the horizontal distance from the end of the ramp to the back of the truck,
Hence, by applying the Pythagoras theorem, (shown below)




Thus, the horizontal distance from the end of the ramp to the back of the truck = 56 inches.