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How do I figure out the square footage of a home including stairs?

Mathematics
Tutor: None Selected Time limit: 1 Day

stairs are 14 steps @ 39"wide 11"deep and 7" high?

Apr 24th, 2015

Each step as a face and a top

The face is 39 x 7 = 273 sq in

The top is 39 x 11 = 429 sq in

273 + 429 = 702 sq in PER STAIR

14 steps means 14 stairs, so

14 x 702 = 9828 sq in  of stairs

which equals 9828/144 = 68.25 sqft

Apr 24th, 2015

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