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Calculate the surface area of the pyramid below. SA= blank ft^2 (round to 1 decimal place)

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Calculate the surface area of the pyramid below. SA= blank ft^2 (round to 1 decimal-example-1

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Answer:

56.4

Explanation:

The area of the rectangular base is
(4.5)(3.5)=15.75 square feet.

The combined area of the four triangular faces is
4(1/2)(3.5)(5.8)=40.6 square feet.

Taking the sum of these areas, the surface area is
40.6+15.75 \approx 56.4 ft².

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