What 2d shape do you get from a cross section of a triangular prism perpendicular to its base?

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no, the cross-section parallel to the base would be a triangle. Perpendicular would be a rectangle.

I apologize for the mistake in my previous response. You are correct.

When a triangular prism is cut perpendicular to its base, the cross-section will be a rectangle. This is because the cut will pass through the triangular base and the rectangular sides of the prism, resulting in a rectangle-shaped cross-section.

Therefore, the 2d shape we get from a cross section of a triangular prism perpendicular to its base is a rectangle. Thank you for pointing out the error.

A cross section of a triangular prism perpendicular to its base would result in a triangle.

To see this, let's think about the shape of a triangular prism. It has a triangular base and three rectangular faces that connect to the base. When we cut perpendicular to the base, we will be cutting through one of the rectangular faces and the base, resulting in a cross section that is a triangle.

Therefore, the 2d shape we get from a cross section of a triangular prism perpendicular to its base is a triangle.