MCQOPTIONS
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| 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» D. R-T | |