Question

If x = 12 inches and y = 18 inches, where y is the height of each triangle of the pyramid, what is the surface area of the figure?

Answer 1

Since the cube and pyramid are attached, some of the faces are not exposed. So, the non-exposed faces are not included when calculating the surface area.

The cube has 5 square faces exposed, and the square pyramid has 4 triangular faces exposed.

The surface area of the figure is 1,152 square inches.

Answer 2

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