Question

# The Capacity of a closed cylindrical vessel of height 1m is 15.4 litres. How many square metres of metal sheet would be needed to make it?

Hint:

### The capacity (or volume) of a closed cylindrical vessel with base radius r and height h, is cubic units.

## The correct answer is: 46.2 square metres of metal sheet would be needed to make it.

### Explanations:

Step 1 of 2:

The capacity of a cylindrical vessel of height 1m is given by, 15.4 litres.

.

Step 2 of 2:

The TSA (total surface area) of a closed cylindrical vessel is sq. units, the term ‘’ indicates the surface area of the two closed bases.

Final Answer:

46.2 square metres of metal sheet would be needed to make it.

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For the solution of the system of equations above, what is the value of ?

**Note:**

The equations can be solved in many other ways like substitution

method which is: to eliminate one variable in any one of the

equations with the help of other equation. As we need to find the

value of x, we try to find the value of y in terms of x from one

equation. Then put that value of y in the other equation to get a linear equation in one variable , which is x.

For the solution of the system of equations above, what is the value of ?

**Note:**

The equations can be solved in many other ways like substitution

method which is: to eliminate one variable in any one of the

equations with the help of other equation. As we need to find the

value of x, we try to find the value of y in terms of x from one

equation. Then put that value of y in the other equation to get a linear equation in one variable , which is x.