Final answer:
When you approach an intersection with an eight-sided octagonal shaped road sign, you should come to a complete stop and yield the right-of-way to others before proceeding.
Step-by-step explanation:
When you approach an intersection with an eight-sided octagonal shaped road sign, you should come to a complete stop. This type of sign is known as a stop sign and it indicates that you must stop and yield the right-of-way to any other vehicles or pedestrians. Only proceed through the intersection when it is safe to do so.