The great pyramid of Giza was built around 2560 BC. It was originally 481ft high with a square base measuring 751 ft on each side. It's slant height was 611 ft. Find the lateral surface area of the great pyramid, round your answer to the four-significant digits? How do I start this thing?

Answer 1

There are four triangles, each with a area of 1/2 bh= 1/2 (611*751).