the above piece is a lithograph by m. c. escher. how has escher used the concept of space effectively

In the mirrored ball, the objects are varying sizes, which allows certain objects or subjects (ex: man) to appear closer and others farther away (window), creating depth and form. The artist also made some objects curved (ex: bookshelf and ceiling) and receding, in order to show the curvilinear lines of sphere of the mirror. The hand holding the ball, with its two fingers in the forefront, and its others behind, add to the 3-dimensional appearance.

Explanation:

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perimeter = 2l +2w, divide total perimeter by 2 for total length of 1 side and 1 width

172/2 = 86 (  total for 1 side and 1 width)

86-24 = 62 (since length is 24 ft longer subtract 24 then divide by 2 for width)

62/2 = 31

width = 31 feet

length = 31 +24 = 55 feet

check: 31*2 = 62, 55*2 = 110,  110+62 = 172