Fan-shaped models can be created in the Spin Wizard or Extrusion Wizard.
In case of Spin Wizard
[1] Click "Spin Wizard" on the Feature tab.

[2] Select Plane Type, then draw sketch.Create a sketch with the Y axis pointing upward. Then click "Finish"
(Spin with respect to the Y-axis)

[3] After creating the model, change the opening angle.
In the (yellow highlighted) state of IntelliShape,Right-click the handle for the rotation angle of the spin and select Edit Value.
Enter any angle and click OK.
[4] Again, in the (yellow highlighted) state of IntelliShape, you can double-click on the dimensions to change the inner diameter, outer shape, and thickness.
In case of Extrusion Wizard
[1] Click "Extrude Wizard" on the Feature tab.

[2] Select Plane Type.
[3] Click "Center, Radius" on the Sketch tab. Draw the inner diameter and outer diameter

[4] Draw lines with "Two Point". And set dimensions with "SmartDimension" command.

[5] Delete unnecessary lines with "Trim" on the Sketch tab.

[6] Double-click the constraint marks to enable corner vertical and horizontal restraint and so on.
Red is detained.

[5] When the inner and outer circles are concentric, the mark in the figure below is red.
[6] You can change the extrusion distance and change the thickness.
In the (yellow highlighted) state of IntelliShape, you can change the thickness by dragging the handle.

[8] Similarly,In the (yellow highlighted) state of IntelliShape, you can change the inner diameter, outer diameter, and opening angle.
You can double-click the dimensions and change them.

If you forgot to enter the dimensions, you can right-click on IntelliShape (highlighted in yellow) and add them in Edit Cross Section Shape.
Please refer to the video below.
IC-011