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The surface area of stairs is found by multiplying the length and width of one stair top and of the riser. This should be multiplied by the number of stairs.

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10y ago

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Times the length and width of a tread and a riser to give the area of both. Then times by the number of pairs of treads and risers.

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12y ago
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Q: How do you calculate the area of staircase?
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