A house of cards.

One of Ben's favorite hobbies is to replicate famous buildings using different materials. Ben decided to challenge himself by making a replica of a flat iron building using a deck of cards. The building is an isosceles triangle.

The replica that Ben created has a height of 1515 inches and two sides measuring 2222 inches each. What is the surface area of the replica? (Round to the nearest inch).

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Type a concept, like “slope” or “photosynthesis”.

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