Question

Which of the following is a type of face found on a Platonic solid?

A. Right triangle
B. Isosceles triangle
C. Acute triangle
D. Equilateral triangle

Answer 1

it is c because the triangel as to be acute 

Answer 2

D. Equilateral triangle

Explanation:

Every face is a regular polygon of the same size and shape. Example: each face of the cube is a square.

So, out of the given options, equilateral triangles is the answer.

Each vertex of a regular triangle is 60°. And there can be 3, 4, or 5 triangles meeting at a vertex but all will be equilateral triangles. For example: a tetrahedron.