A wheel of cheese has a diameter of 6 inches and a height of 2 inch. A chef is making an appetizer where the cheese will be covered with pastry. To know how much pastry is needed, the chef wants to know the surface area of the cheese wheel. What is the total surface area of the cheese wheel in square inches? Use 3.14 for pi.(1 point)

Responses

37.68 square inches
37.68 square inches
301.44 square inches
301.44 square inches
62.8 square inches
62.8 square inches
94.2 square inches

1 answer

To calculate the total surface area of a cylinder (which is the shape of the cheese wheel), you can use the formula:

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

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

  1. First, find the radius of the cheese wheel:

    • The diameter is 6 inches, so the radius \( r \) is: \[ r = \frac{\text{diameter}}{2} = \frac{6}{2} = 3 \text{ inches} \]
  2. The height \( h \) is given as 2 inches.

  3. Now, substitute the values into the formula: \[ \text{Surface Area} = 2 \times 3.14 \times 3 \times (2 + 3) \]

  4. Simplifying inside the parentheses first: \[ h + r = 2 + 3 = 5 \]

  5. Now, substituting back into the formula: \[ \text{Surface Area} = 2 \times 3.14 \times 3 \times 5 \]

  6. Calculate each part step-by-step: \[ 2 \times 3.14 = 6.28 \] \[ 6.28 \times 3 = 18.84 \] \[ 18.84 \times 5 = 94.2 \]

Therefore, the total surface area of the cheese wheel is 94.2 square inches.

The correct response is: 94.2 square inches