To find the volume of paint needed to cover the prism box, we need to calculate the surface area of all the faces of the box and then multiply it by the number of coatings.
The prism box has 6 faces, each with an area of 6 cm x 6 cm = 36 square cm.
To convert this to square meters, divide by 10,000:
36 square cm รท 10,000 = 0.0036 square meters.
Since there are 6 faces, the total surface area of the box is 6 x 0.0036 square meters = 0.0216 square meters.
If 100 ml of paint is needed to cover 1 square meter per coating, then for 0.0216 square meters, we would need 0.0216 square meters x 100 ml = 2.16 ml of paint for one coating.
However, since the paint needs to be applied on both the interior and exterior of the packaging, including underneath, we need to double this amount.
Therefore, the total volume of paint needed for one coating would be 2.16 ml x 2 = 4.32 ml.
Please note that this calculation assumes the prism box has no lid or bottom and only has six faces. If the box is more complex or has additional surfaces, the calculation may differ.
what volume of paint will be needed to paint the prism box that has a width, length and height of 6cm if about 100ml of paint needed to cover 1 square metre per coating.
N.B for the purpose of durability of the packaging, the paint should be applied on the interior and the exterior of the packaging including underneath
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