The faces of a triangular pyramid are al...

The faces of a triangular pyramid are all_________.

Squares

Rectangles

Spheres

Triangles

Text Solution

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The correct Answer is:

To answer the question about the faces of a triangular pyramid, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Shape**: A triangular pyramid is also known as a tetrahedron. It consists of a base and three triangular faces that connect at a point (the apex). 2. **Count the Faces**: A triangular pyramid has a total of 4 faces. This includes one triangular base and three triangular lateral faces. 3. **Determine the Shape of Each Face**: Since the triangular pyramid is formed entirely from triangles, we can conclude that all the faces of a triangular pyramid are triangles. 4. **Final Answer**: Therefore, the faces of a triangular pyramid are all triangles.

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A triangular age pyramid has

declining population

increasing population

stable population

fluctuating population

The side faces of a pyramid are

triangles

squares

trapeziums

polygons

All five faces of a regular pyramid with a square base are found to be of the same area. The height of the pyramid is 3 cm. The total area of all its surfaces (in cm^(2) ) is