Acompany designs a box to package their product. the material used costs $0.112 per square foot. the box consists of a square bottom and isosceles triangles making up the sides. a net of the box is shown below. how much would the material for 10,000 boxes cost?

Square Area = 9 inches * 9 inches
Square Area = 81 square inches

Triangle Base = 9 inches
(1/2) Triangle Base = 4.5 inches
Triangle Height^2 = 11^2 -4.5^2
Triangle Height^2 = 121 -20.25
Triangle Height^2 = 100.75
Triangle Height = 10.0374299499
Triangle Area = 10.0374299499 * 4.5
Triangle Area (rounded) = 45.17 square inches

Area of 4 triangles = 180.673739099 square inches
PLUS Area of the Square = 81 square inches

Total Area =  261.67 square inches

144 square inches = 1 square foot
Total Area =  1.8171527778 square feet

Cost of 10,000 = .112 * 10,000 * 1.817153 
Cost of 10,000 = $2,035.21 

12 months per year × 30 years...

12×30 = 360 monthly payments.