The surface area of the composite solid is the combination of the triangular prism and rectangular prism. Then the surface area of the composite solid is 1658 square meters.
What is Geometry?
It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
The surface area of the composite solid is the combination of the triangular prism and rectangular prism.
Surface area = surface area of rectangular prism + triangular prism
The surface area of the rectangular prism will be
[tex]\rm Surface \ area = 2(25 \times 10 + 25 \times 15) + 10 \times 15\\\\Surface \ area = 1250+150\\\\Surface \ area = 1400[/tex]
The surface area of the triangular prism will be
[tex]\rm Surface \ area = 2 \times \dfrac{1}{2} \times 6 \times 8 + 15\times 8+15\times 6\\\\Surface \ area = 48+210\\\\Surface \ area = 258[/tex]
Then the area of the composite solid will be
Surface area of the composite solid = 1400 + 258
Surface area of the composite solid = 1658 square meters
More about the geometry link is given below.
https://brainly.com/question/7558603
