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26-03-2020
Mathematics

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Each step of a stairway rises 18 cm for a tread width of 32 cm. What angle does the stairway make with the floor?

Each step of a stairway rises 18 cm for a tread width of 32 cm What angle does the stairway make with the floor class=

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26-03-2020

Answer:

29.4°

Step-by-step explanation:

The ratio of rise to run is the tangent of the angle, so the angle is ...

angle = arctan(rise/run) = arctan(18/32)

angle ≈ 29.4°

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