What type of mask is shown above?
a.
bwanai
b.
bewami
c.
bwani
d.
bwami

d. Bwami

Explanation:

    Lega masks (also known as Warega) originate from the Bwami tribe in the Congo. These are well-sculpted examples of Lega wooden face mask. In general face is enhanced by exceptionally carved eyebrows. The long, thin nose as well as the open eyes and mouth are sculpted in the Lega style.

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