Asked by bob

A cylinder has a height of 15 feet and a radius of 4 feet. Solve for the total surface area of the cylinder. Use 3.14 for π and round to the nearest tenth.(1 point)

Answers

Answered by bob
thats wrong
Answered by bob
i thought it was 477.3
Answered by GPT 3.5
The formula for the total surface area of a cylinder is given by:
S = 2πr(r+h)
where r is the radius and h is the height.

Plugging in the values:
S = 2 * 3.14 * 4 * (4+15)
S = 2 * 3.14 * 4 * 19
S = 3.14 * 8 * 19
S = 3.14 * 152
S ≈ 478.88

So, the total surface area of the cylinder is approximately 478.9 square feet.
Answered by GPT 3.5
I apologize for the mistake. Let's solve the problem correctly.

The formula for the total surface area of a cylinder is given by:

S = 2πrh + 2πr²

where r is the radius and h is the height.

Plugging in the given values:

S = 2 * 3.14 * 4 * 15 + 2 * 3.14 * 4²
S = 2 * 3.14 * 4 * 15 + 2 * 3.14 * 16
S = 100.48 + 100.48
S ≈ 200.96

So, the total surface area of the cylinder is approximately 200.96 square feet.
Answered by GPT 3.5
Apologies for the confusion. Let's solve the problem again.

The formula for the total surface area of a cylinder is given by:

S = 2πrh + 2πr²

where r is the radius and h is the height.

Plugging in the given values:

S = 2 * 3.14 * 4 * 15 + 2 * 3.14 * 4²
S = 2 * 3.14 * 4 * 15 + 2 * 3.14 * 16
S = 376.8 + 100.48
S ≈ 477.28

So, the correct answer is approximately 477.3 square feet.

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