an open ended pipe has an internal diameter of 0.35m an dis 3.0m long.

determine:

1) the cross sectional area

2)its circumference

3)the volume of the pipe

4)the internal surface area

the pipe is flowing part full of water. the water surface subtends an angle of 110 degrees at the centre.

determine:

1) the cross sectioanl area of flow.

2)the wetted perimeter