This KS2 maths article explains how to find out what a net is and how they can be used to build 3D shapes. ... square pyramid. B) hexagonal pyramid. C) octagonal pyramid.

Cairo's Tahrir Square obelisk has its pyramid-shaped top installed. Nevine El-Aref, Wednesday 12 Feb 2020. The obelisk is around 19m tall and weighs 90 tones.