If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width

1.

If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width

[A].	R + T
[B].	T-R
[C].	√R2 + T2
[D].	R-T

Answer: Option C

Explanation:

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