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1 A square pyramid has 1 at the top and 4 round the base, a total of 5. A triangular pyramid has 1 at the top and 3 round the base, a total of 4. The square pyramid has 5 - 4 = 1 extra vertex (round its base).
A square based pyramid has 4 triangular faces which means it has a total of 5 faces
Cube = 6 Sq base pyramid= 5 total= 11
4 triangles and a square. total of 5 faces
its 76 degrees