1 Answer

Hongtao Yang · Answer 1 · 2023-11-16T22:11:35+0000

1) LEt's calculate the total surface by calculating the area of the base:

• A square: A =s² A = 12² A=144 ft²

,

• 4 triangles whose altitude is 8 and their legs are 10, and 12

$\begin{gathered} S=(bh)/(2)\Rightarrow\text{ S=}(12\cdot8)/(2) \\ S=48 \\ 48\text{ }*4\text{ = 192 ft²} \end{gathered}$

2) Now we can add them all up:

$\text{Total Surface Area: 144+192 =336 ft²}$

3) Hence, the total surface area of that Pyramid is 336 ft²

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