Find the surface area of a cylinder with a height of 4 yards and a radius of 2 yards. Use 3.14 for π

π
and round to the nearest tenth.(1 point)
yards2

1 answer

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

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

where:

  • \( r \) is the radius of the base,
  • \( h \) is the height of the cylinder.

For your cylinder:

  • Height \( h = 4 \) yards,
  • Radius \( r = 2 \) yards,
  • Using \( \pi \approx 3.14 \).

Now we can substitute the values into the formula:

  1. Calculate \( h + r \): \[ h + r = 4 + 2 = 6 \]

  2. Calculate \( 2\pi r \): \[ 2\pi r = 2 \times 3.14 \times 2 = 12.56 \]

  3. Now, multiply \( 2\pi r \) by \( (h + r) \): \[ \text{Surface Area} = 12.56 \times 6 = 75.36 \]

Thus, the surface area of the cylinder is approximately:

\[ \text{Surface Area} \approx 75.4 \text{ yards}^2 \]

So the final answer, rounded to the nearest tenth, is:

\(\boxed{75.4 \text{ yards}^2}\)