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 with horizontal, the perimeter of the canal is
A.	R( + tan )
B.	2R( + tan )
C.	R( + cos )
D.	2R( + cos )
E.	none of these.
Answer» E. none of these.

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