Brainly for correct answer -- step by step explination <3
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Answer:
694 ft²
Step-by-step explanation:
Calculate the area of all 6 walls, noting that the front and back faces are congruent as are the 2 side faces and top/bottom faces
area = 2(13 × 8.5) + 2(11 × 8.5) + 2(13 × 11)
= 221 + 187 + 286 = 694 ft²