The size of the pyramids are?

The Great Pyramid of Giza, the largest of the three pyramids, originally stood at about 146.6 meters (481 feet) tall, though it now measures around 138.8 meters (455 feet) due to the loss of the outer casing stones. Its base covers an area of approximately 13 acres. The other two main pyramids, Khafre and Menkaure, are slightly smaller, with heights of about 136.4 meters (448 feet) and 65 meters (213 feet), respectively. These monumental structures were built as tombs for the pharaohs during ancient Egypt's Fourth Dynasty.