Area of side face = 1/2 * base * perpendicular to base on the face = 0.5 * 440 * 356 = 78320 sq units
Area of 4 side faces = 78320 *4 = 313280 sq units
Area of base = 440*440 = 193600 sq units
Total area = 313280 + 193600 = 506880 sq units
basically a square aluminium sheet of around 711.9 units
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