Q388
Four benches are being worked by the opencast mining system. Height, width and face angle for each bench are 15 m, 50 m and 70° respectively. The overall slope angle of the benches in degrees is
A.
15.45°
B.
19.25°
AnswerC.
32.65°
D.
36.25°
Answer: Option B
Solution
Answer: Option B
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