If the straight sides of a triangular section of a lined canal with ci – McqOptions

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1.	If the straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle Œ∏ with horizontal, the perimeter of the canal is
A.	none of these.
B.	R(Œ∏ + tan Œ∏)
C.	2R(Œ∏ + tan Œ∏)
D.	R(Œ∏ + cos Œ∏)
Answer» E.

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