It appears you're presenting data related to the area of various shapes, possibly in the context of a geometric problem involving a rectangular prism and triangles. Based on the information you've provided:
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Rectangular Prism:
- Area of the base: \(20 , \text{ft} \times 18 , \text{ft} = 360 , \text{ft}^2\)
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Triangles:
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For the first triangle:
- Base \(b = 20 , \text{ft}\) and slant height \(h = 16.6 , \text{ft}\)
- Area = \(\frac{1}{2} \times b \times h = \frac{1}{2} \times 20 \times 16.6 = 166 , \text{ft}^2\)
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For the second triangle:
- Base \(b = 18 , \text{ft}\) and slant height \(h = 17.2 , \text{ft}\)
- Area = \(\frac{1}{2} \times b \times h = \frac{1}{2} \times 18 \times 17.2 = 154.8 , \text{ft}^2\)
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If this is what you were looking for, I have calculated the areas, but if you're looking for something specific related to the numbers you mentioned (522 ft², 148.5 ft², etc.), please clarify how they relate to your query.