Although françois rude's sculptures la marseillaise for the arc de triomphe are neoclassical in style, the dramatic motion made it typical of

It is typically a type of Romanticism.  Romanticism is described as awe mixed with terror, the notion of the sublime influenced. It is an attitude or intellectual orientation that characterized many works of literature, painting, music, architecture, criticism, and historiography in Western civilization over a period from the late 18th to the mid-19th century. Romanticism can be seen as a rejection of the precepts of order because this type is not the conventional. 

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