Calculate the edges of a triangular prism.
Draw and label all edges to count accurately.
A triangular prism has two triangular faces and three rectangular faces connecting them. Each triangle has 3 edges, and the three rectangles contribute one edge each to join the triangles, giving a total of 9 edges. Understanding edge counting helps in visualization, nets, and 3D shape problem-solving. Drawing the prism or using physical models is helpful. These skills are essential in geometry questions about 3D shapes.