Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

The question is not clear.

I assume that we are talking about the square faces on the surface of cube.

There are six square surfaces: On each surface there are two diagonals intersecting and they divide the square in to 4 equal triangles.

We can combine two adjacent triangles and we get 4 more triangles.

Each cube has (4+4) * 6 = 48 triangles.

Totally there are 48 * 4000 = 1,92,000 triangles.

I assume we are not to worry about the diagonals inside the cube - that can be between diametrically opposite corners on different surfaces. actually 4 diagonals can be drawn inside the cube meeting at the center of the cube. they also form 8 *2 =16 triangles (bigger than on the surfaces). If this number is included then we get 64,000 more triangles.