The total surface area of the cuboid is:
2(5x7 + 7x12 + 12x5) = 2(35 + 84 + 60) = 2(179) = 358 cm^2
The cost of making 1 cm^2 is #1.75, so the cost of making 358 cm^2 is:
358 x #1.75 = #625.5
Therefore, the cost of making a cuboid of edges 5cm, 7cm, and 12cm is #625.5.
Calculate the cost of making a cuboid of edges 5cm ,7cm,12cm,if the cost of 1cm, is #1.75
1 answer