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A cylinder is labeled with a height of 8 yards and a radius of 7 yards.



Find the surface area of the cylinder. Use the approximation 3.14 for pi.

(1 point)
Responses

252.77 yards
252.77 yards

329.7 square yards
329.7 square yards

577.76 square yards
577.76 square yards

252.77 square yards
252.77 square yards
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1 answer

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

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

Where:

  • \( r \) is the radius
  • \( h \) is the height
  • \( \pi \) is approximately 3.14

Given:

  • Height \( h = 8 \) yards
  • Radius \( r = 7 \) yards

Let's substitute the values into the formula:

\[ \text{Surface Area} = 2 \times 3.14 \times 7 \times (8 + 7) \]

Now, calculate \( (8 + 7) \):

\[ 8 + 7 = 15 \]

Next, substitute this back into the formula:

\[ \text{Surface Area} = 2 \times 3.14 \times 7 \times 15 \]

Calculate \( 2 \times 3.14 = 6.28 \):

\[ \text{Surface Area} = 6.28 \times 7 \times 15 \]

Now \( 7 \times 15 = 105 \):

\[ \text{Surface Area} = 6.28 \times 105 \]

Finally, compute \( 6.28 \times 105 \):

\[ \text{Surface Area} = 659.4 \text{ square yards} \]

None of the options provided (252.77, 329.7, 577.76, or 252.77 square yards) matches the calculated surface area.

Since the options provided do not include the correct answer, it appears there may have been an error in either the problem statement or potential answer choices. However, using the calculations shown, the correct surface area of the cylinder with the given dimensions is 659.4 square yards.