Part of the flower is missing. It isn’t necessary to redraw the missing section.
The half of the flower that we wish to duplicate is facing the wrong way.
The first step is to copy the section of the flower.
Click Select 
Select flower section
Click Copy 
Click Paste 
Drag the picture from the Paste Tool Box and place on the grid.
The flower is pasted but facing the wrong direction.
Click Select button
Select the section of flower just pasted.
Click Edit Menu
Click Flip
Click Horizontally
Voila! Flower is complete.
There is also a Vertical Flip.
Repeat the steps listed above replacing Horizontally with Vertically.
The Horizonal flip shortcut is Ctrl + H
The Vertical flip shortcut is Ctrl + V