Answer:
Explanation:
Formula
The first thing you must do is find the surface area. The formula is right below this sentence.
Surface area = 2*L*w + 2*L*h + 2 * w * h Substitute givens into this formula
- L = length
- w = width
- h = height
The choice of what to make the Length, width and height is arbitrary
Givens
- L = 12.3 inches
- w = 7.5 inches
- h = 6.4 inches
Solution
Surface area = 2*12.3*7.5 + 2*12.3*6.4 + 2*7.5*6.4
Surface area = 184.5 + 157.44 + 96
Surface area = 437.94 in^2
Cost of Paint
The question is not really about Surface Area. The question is about the cost of paint given that 1 square inch costs 0.25 dollars.
Cost = Surface Area * 0.25
Cost = 109.485 dollars or
Cost = 109.49 rounded.