Final answer:
The splint needs to be tilted at a 45-degree angle to maximize contact area, reduce pressure, and distribute force evenly.
Step-by-step explanation:
The splint needs to be tilted at a 45-degree angle to maximize the contact area between the splint and the surface it is supporting. When the splint is tilted, it creates a larger area for the force to be distributed, reducing the pressure on any one point.
By reducing the pressure, the splint is less likely to crack or break under the weight it is supporting. Additionally, tilting the splint at a 45-degree angle can help distribute the force more evenly, making it more stable and less likely to topple over.