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Question
Calculate the surface area of the net diagram of the right circular cylinder. Use 3.14 for π
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(1 point)
Responses

157 inches2
157 inches 2

282.6 inches2
282.6 inches 2

141.3 inches2
141.3 inches 2

197 inches2

1 answer

To calculate the surface area of a right circular cylinder, you can use the formula:

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

where \( r \) is the radius and \( h \) is the height of the cylinder.

To solve the problem based on the provided answer options, let's assume some dimensions for the radius and height since no specific values are given in the question:

  1. If we take \( r = 7 \) inches and \( h = 10 \) inches:

    • Surface Area = \( 2\pi r(h + r) \)
    • Surface Area = \( 2 \times 3.14 \times 7 (10 + 7) \)
    • Surface Area = \( 2 \times 3.14 \times 7 \times 17 \)
    • Surface Area = \( 2 \times 3.14 \times 119 \)
    • Surface Area = \( 2 \times 373.86 \)
    • Surface Area ≈ 747.72 inches² (not one of the choices)
  2. If we try another combination, say \( r = 5 \) inches and \( h = 10 \) inches:

    • Surface Area = \( 2\pi r(h + r) \)
    • Surface Area = \( 2 \times 3.14 \times 5 (10 + 5) \)
    • Surface Area = \( 2 \times 3.14 \times 5 \times 15 \)
    • Surface Area = \( 2 \times 3.14 \times 75 \)
    • Surface Area = \( 2 \times 235.5 \)
    • Surface Area = 471 inches² (not one of the choices)

Given the options, let's try one more combination:

  • If we take \( r = 4 \) inches and \( h = 10 \) inches:

    • Surface Area = \( 2 \pi r(h + r) \)
    • Surface Area = \( 2 \times 3.14 \times 4 (10 + 4) \)
    • Surface Area = \( 2 \times 3.14 \times 4 \times 14 \)
    • Surface Area = \( 2 \times 3.14 \times 56 \)
    • Surface Area = \( 2 \times 175.84 \)
    • Surface Area = 351.68 inches² (not one of the choices)

It appears there might be a misunderstanding or missing information because the calculated surface areas are not matching any of the options directly. However, if we are only considering the base area, the cylindrical surface area, or if there’s a specific set of height and radius values provided in the diagram, please share those for an accurate answer.

For purely educational reasons, the closest option to standard dimensions based on assumptions might be:

  • Response: 282.6 inches² might relate to conditions where the radius and height fit different parameters not assessed here.

Thus, based on the choices, my best guess without further context for the radius and height values is 282.6 inches². For accuracy, please verify the cylinder's dimensions with your provided data.