A coal seam is exposed on a horizontal ground. If it is 30° towards – McqOptions

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1.	A coal seam is exposed on a horizontal ground. If it is 30° towards West. Its width of outcrop on a level ground is 360 m. What is its true thickness?
A.	120 m
B.	150 m
C.	160 m
D.	180 m
Answer» E.

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