What is the purpose of 'lighting' in an Artwork? A. Emphasis
B. Form
C. Design
D. Balance

Lighting makes the image appear to jump off the canvas, and gives the scene a three dimensional feel. Lighting can also highlight the intended texture of elements within the composition.

Explanation:

so A

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