Respuesta :

vpreciado899

Answer:

c) three

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Step-by-step:

The tetrahedron is a triangular pyramid with equilateral triangles on each face.

pc192y

Answer:

3

Step-by-step explanation:

lateral faces are the faces that don't include the base(s).

In this case the base of a triangular pyramid is a triangle.

Therefore there are three sides on the base, and 3 lateral faces.

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