The answer for the question shown above is the option C, which is: C- R<span>egular square pyramid. The explanation is shown below: By definition a regular square pyramid must be a pyramid with a square base, which means that the sides of its base have the same length. You can identify it as a pyramid because it has an apex, a height, lateral faces that are congruent isosceles triangles and slant height (the altitute of the lateral faces).</span>
