Find the surface area of the cylinder that has a radius of 4 meters and a height of 10 meters.

Use the formula:
Use 3.14 for π
.




(1 point)
The surface area of the cylinder is
square meters.

1 answer

To find the surface area of a cylinder, you can use the formula:

\[ \text{Surface Area} = 2\pi r(h + r) \]

Where:

  • \( r \) is the radius of the cylinder,
  • \( h \) is the height of the cylinder,
  • \( \pi \) is approximately \( 3.14 \).

Given:

  • Radius \( r = 4 \) meters,
  • Height \( h = 10 \) meters.

Now, plug the values into the formula:

\[ \text{Surface Area} = 2 \times 3.14 \times 4 \times (10 + 4) \]

Calculate \( (10 + 4) \):

\[ 10 + 4 = 14 \]

Now substitute that back into the formula:

\[ \text{Surface Area} = 2 \times 3.14 \times 4 \times 14 \]

Next, calculate \( 2 \times 3.14 \):

\[ 2 \times 3.14 = 6.28 \]

Now proceed with the calculation:

\[ \text{Surface Area} = 6.28 \times 4 \times 14 \]

Calculate \( 4 \times 14 \):

\[ 4 \times 14 = 56 \]

Now multiply:

\[ \text{Surface Area} = 6.28 \times 56 \]

Calculate \( 6.28 \times 56 \):

\[ 6.28 \times 56 = 351.68 \]

Thus, the surface area of the cylinder is approximately:

\[ \text{Surface Area} \approx 351.68 \text{ square meters} \]

So, the final answer is:

The surface area of the cylinder is approximately 351.68 square meters.