#lang scheme/base (require 2htdp/universe (prefix-in 2: 2htdp/image) (prefix-in 1: htdp/image)) (define (see-full-rectangle x f) (big-bang x (on-tick sub1) (stop-when zero?) (on-draw (λ (x) (f 100 100 'outline 'black))))) (see-full-rectangle 3 2:rectangle) (see-full-rectangle 3 1:rectangle)