a trapezoid on top of large shape don't select two shapes at same time.  delete the rectangle
page4-240.png page6-140.png page4-237.png page2-191.png
page1-175.png page2-191.png page4-24.png page2-157.png page6-140.png page4-240.png page3-110.png page3-94.png page8-199.png page4-237.png
page1-175.png page4-237.png
no, delete the other image and reselect the one you deleted