Answer:
True
Step-by-step explanation:
The builders of Stonehenge tapered the upright stones and topped them with knobs that fit into the bottoms of the arches. This helped to stabilize the stones and prevent them from slipping or toppling over. The knobs and sockets also helped to distribute the weight of the stones more evenly, making the monument more stable and durable. This technique is known as "mortise and tenon" jointing, and it was commonly used in ancient construction to join two pieces of stone or wood together.