EM-2219
Volume and surface area of solids
E Math · Secondary 4 · Hard · Volume and surface area of solids
A solid is made by placing a square-based pyramid on top of a cube. Each edge of the cube is cm. The vertical height of the pyramid is cm and its base fits exactly on the top face of the cube.
Find, in terms of , the total surface area of the solid, excluding the base of the cube.
Find, in terms of , the total surface area of the solid, excluding the base of the cube.
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