The surface area of the composite figure is 416 square cm because the composite figure is made up of two figures.
It is defined as the six-faced shape, a type of hexahedron in geometry.
It is a three-dimensional shape. It is also called a cuboid.
We have a composite figure shown in the picture.
As we can see in the picture the composite figure is made up of two figures.
The first one is a rectangular prism
Second one is a triangular prism.
The surface area of the composite figure:
= area of the two triangle shapes + area of the two rectangles in triangular prism + surface area of the rectangular prism - (12x5)
= 2(1/2)12x10 + 2(10x5) + 2(4x5 + 12x5 + 12x4) - 12x5
= 120 + 2(50) + 2(20 + 60 + 48) - 60
= 120 + 100 + 2(128) - 60
= 120 + 100 + 256 - 60
= 416 square cm
Thus, the surface area of the composite figure is 416 square cm because the composite figure is made up of two figures.
Learn more about the rectangular prism here:
brainly.com/question/21308574
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