(define dot (circle 50 "solid" "red"))

(define background (rectangle 300 200 "outline" "black"))

Think of the background image as a sheet of graph paper with the origin (0,0) in the bottom left corner. The width of the rectangle is 300 and the height is 200. The numbers in put-image specify a point on that graph paper, where the center of the top image (in this case dot) should be placed.

What coordinates would you expect were used to place the dot for each of the following images?

1

White rectangle with a quarter of a red circle in the bottom left corner

(put-image dot background)

2

White rectangle with a red semicircle in the center of the left edge

(put-image dot background)

3

White rectangle with a quarter of a red circle in the top right corner

(put-image dot background)

4

White rectangle with a red circle semi circle centered on the top edge

(put-image dot background)

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