Lemma
MediumArea & perimeter
AQuA-RAT train #16586 · Geometry · Area & perimeter

A rectangular photograph is surrounded by a border that is 1 inch…

A rectangular photograph is surrounded by a border that is 1 inch wide on each side. The total area of the photograph and the border is M square inches. If the border had been 5 inches wide on each side, the total area would have been (M + 180) square inches. What is the perimeter of the photograph, in inches?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #16586

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