Final answer:
The walls of San Felipe del Morro, also known as El Morro, are approximately 140 feet thick. These thick walls provided protection against enemy attacks and were designed to withstand cannon fire.
Step-by-step explanation:
The walls of San Felipe del Morro, also known as El Morro, are approximately 140 feet thick. El Morro is a fort located in San Juan, Puerto Rico, and was built by the Spanish from the 16th to the 18th century. Its thick walls were designed to provide protection against enemy attacks and withstand cannon fire. The thickness of the walls made it difficult for attackers to breach the fort and provided a strategic advantage to its defenders.
Learn more about The thickness of the walls of San Felipe del Morro