Why was Marsden Hartley considered one of the forerunners of the Modern Art movement?

His use of images and fragments to speak symbolically about the subject was a revolutionary approach to art. ... Their focus on the darker side of humanity was radically different than mainstream art at the time.

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His use of images and fragments to speak symbolically about the subject was a revolutionary approach to art. ... Their focus on the darker side of humanity was radically different than mainstream art at the time.

Explanation:

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