Surface Area of Joined Solids

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.

Videos

$How to calculate the surface area of a cylinder joined to a cone.$
$How to calculate the surface area of a cylinder joined to a cone.$
$How to calculate the surface area of a rectangular prism with half of a cylinder on top.$