Ellipse

Draw panel > Ellipse - Axis End

Pick a point, move cursor to right

Enter 1700 for the major axis

Enter 550 for the minor axis

Elliptical Arc

Draw panel > Elliptical Arc

Command line: Center

Pick a center point then move cursor to right

Enter 1000 for the major axis

Enter 700 for the minor axis

Specify start angle: Move cursor to left for 180

Specify end angle: Move cursor to right for 0

Start Line command
Draw a line up 1000

Start-End-Radius Arc
Pick a point from right, move cursor to left
Enter 2000

Enter 3300 for the radius

Draw a line to join them