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The area of an obelisk is the sum of the areas of each of the sides and the sum of the areas of each side of the pyramid shaped top. Since the structure is regular in its proportions this is:

Area of 1 side = (1/2)Hside x (Wtop+Wbottom) = Aside

Area of 1 top face = (1/2)Htop x Wtop = Aface

Total area = (4 x Aside)+(4 x Aface)

Where A = area, H = height, W = width

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16y ago

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