Step-by-step explanation:
Surface area of square pyramid
[tex] = 4 \times area \: of \: one \: triangle \\ + area \: of \: square \\ \\ = 4 \times \frac{1}{2} \times 8 \times 17 + {8}^{2} \\ \\ = 4 \times 4 \times 17 + 64 \\ \\ = 272 + 64 \\ \\ = 336 \: {in}^{2} [/tex]
