A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on e

A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on each side through an angle 胃. How should 胃 be chosen so that the gutter will carry the maximum amount of water?





How many Radians?





Please help!!!A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on e
60 degrees = 1.0472 rad

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