7. 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. pls. help.

I object!

To determine the volume of the object made from sheet metal, we need to know the shape of the object. Let's assume that the object is a rectangular prism.

a) To find the volume of a rectangular prism, we need to know the dimensions - length, width, and height. If you have these values, you can use the formula:

Volume = Length x Width x Height

For example, if the length is 5 cm, the width is 3 cm, and the height is 10 cm, the volume would be:

Volume = 5 cm x 3 cm x 10 cm = 150 cm³

If the object is a different shape, please provide the necessary information, such as the dimensions or the shape, so that we can calculate the volume accordingly.

b) To determine the surface area that needs to be covered with enamel, we need to find the sum of the areas of all the exposed faces.

For a rectangular prism, there are six faces, and all of them need to be covered in this case. The surface area of a rectangular prism can be calculated using the formula:

Surface Area = 2lw + 2lh + 2wh

Where:
l = length
w = width
h = height

Using the values mentioned earlier (length = 5 cm, width = 3 cm, height = 10 cm), the surface area can be calculated as follows:

Surface Area = 2(5 cm x 3 cm) + 2(5 cm x 10 cm) + 2(3 cm x 10 cm)
Surface Area = 30 cm² + 100 cm² + 60 cm²
Surface Area = 190 cm²

Hence, the surface area to be covered with enamel would be 190 cm².