Find the total surface area of this object.

Answer:
solution,
Total surface area:
[tex]2( \frac{1}{2} \times 6 \times 8) + 6 \times 20 + 8 \times 20 + 10 \times 20 \\ = 48 + 120 + 160 + 200 \\ = 528 \: {units}^{2} [/tex]
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