An ISJC 200 channel section has the following details: width of flange 70 mm, depth of channel 200 mm, the thickness of flange tf = 7.1 mm, a moment of inertia Ixx = 1161.2 cm4: The distance of shear centre from the centre of the web will be
1
16.82 mm
2
18.58 mm
3
22.87 mm
4
27.87 mm