It's has all acute angles
A square based pyramid has 12 angles
No, but a square pyramid does.
One
A lot of things. For example, a cube has 8 vertices, the square pyramid has 5. A cube also has more edges and faces than the pyramid. All the faces of the cube are squares, while the pyramid only has one square face. Also, all the angles in the cube are right angles, while the angles in a square pyramid (in the usual sense of a pyramid where the apex is directly above the center of the base) are acute. In any case, they are not all right angles.
4
A square pyramid has 16 angles.
A square based pyramid has 12 angles
A square pyramid has a total of 8 angles. Each of the 4 triangular faces has 3 angles, totaling 12 angles. However, 4 of these angles are shared where the faces meet at the base, resulting in a total of 8 unique angles in a square pyramid.
No, but a square pyramid does.
5 angles
20 angles
No angles are larger than 90 degrees in a square based pyramid.
One
A lot of things. For example, a cube has 8 vertices, the square pyramid has 5. A cube also has more edges and faces than the pyramid. All the faces of the cube are squares, while the pyramid only has one square face. Also, all the angles in the cube are right angles, while the angles in a square pyramid (in the usual sense of a pyramid where the apex is directly above the center of the base) are acute. In any case, they are not all right angles.
four
It is a square based pyramid.
Yes - it has four around the base !