Multiple Choice
If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is
A) w (R + T) /T
B) w (R² + T²) /T
C) w (R + T) /T.
D) w (R/T)
Correct Answer:

Verified
Correct Answer:
Verified
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