Surface Area of Joined Solids - Concept

Concept Concept (1)

Surface area is a two-dimensional property of a three-dimensional figure. When solids are joined together, such as a hemisphere on a cone, the surface area of the connecting circle is not included in the overall surface area - it is "hidden." Thus, to solve surface area of joined solids problems, determine which faces or bases are hidden and find the surface area of the remaining parts.

Sample Sample Problems (2)

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Surface Area of Joined Solids - Problem 1
Problem 1
How to calculate the surface area of a cylinder joined to a cone.
Surface Area of Joined Solids - Problem 2
Problem 2
How to calculate the surface area of a rectangular prism with half of a cylinder on top.