Hi Graham,

Verner who began his at Abusir in the 70s, has the square bases of Sahura, Niuserra and Neferefra, 150 x 150 cubits, and the angle of incline of the faces of the pyramids of Niuserra, 51.84 degs (sqd 5 1/2), and Sahura, 50.50 degs (approx. sqd 5 3/4)

CT