Nasmin will construct this object from
sheet metal, then coat it with enamel.
a) Determine the volume of the object.
b) Determine the surface area to be
covered with enamel. All exposed faces
are to be covered. 20cm and 15cm, 13cm, 6cm and 4cm.
please show your work so i can understand it . thanks
so, what are those dimensions?
a) To determine the volume of the object, we need to know the shape of the object. Without that information, it is not possible to calculate the volume accurately. If you provide the shape of the object, I can guide you through the calculation.
b) To determine the surface area to be covered with enamel, we need to calculate the area of all the exposed faces. From the given dimensions, it seems like this object has five faces with different dimensions: 20cm (length), 15cm (width), 13cm (height), 6cm (width), and 4cm (height).
To find the surface area, we will calculate the area of each face separately and then sum them up.
1. Face A: 20cm x 15cm = 300cm²
2. Face B: 20cm x 13cm = 260cm²
3. Face C: 15cm x 13cm = 195cm²
4. Face D: 6cm x 15cm = 90cm²
5. Face E: 6cm x 13cm = 78cm²
Now, we will add up the areas of all the faces to get the total surface area:
Total Surface Area = Face A + Face B + Face C + Face D + Face E
= 300cm² + 260cm² + 195cm² + 90cm² + 78cm²
= 923cm²
Therefore, the surface area to be covered with enamel is 923cm².
Note: If there are more faces or if the object has a different shape, the calculation would be different. Please provide more details if that is the case.