How do I draw this out?

Have designer 3 and need to draw this out in the software.
I can draw it out in inkscape save it as a image but not able to adjust it in the designer software.
Is there a easy wayto draw it out in designer?

Attachment 84808

See if this helps. I first drew a circle for reference, drew an arc, copied the arc and then flipped it and moved to the bottom of the circle. Next I used the connected line tool to draw the inset lines.

Thanks, I will give it a try.

This is a perfect job for the trim tool if you have the 2D advanced tools. (Circles, however, must be made of arcs to trim.)