Apply the technique of using nets to find the surface area of a turtle’s tank, which measures 33.93 inches long by 15.81 inches wide by 17.69 inches tall. What is the surface area of the tank if the tank does not include a top cover? Round the answer to the nearest hundredth.(1 point)

Responses

9,489.51 in2
9,489.51 in squared

1,416.33 in2
1,416.33 in squared

2,832.67 in2
2,832.67 in squared

2,296.23 in2
2,296.23 in squared

1 answer

To find the surface area of the turtle tank that does not include a top cover, we can use the concept of a net. The tank is a rectangular prism, so we need to find the areas of the bottom and the four sides.

The formula for the surface area \( S \) of a rectangular prism that does not include the top is:

\[ S = (Length \times Width) + (2 \times Height \times Length) + (2 \times Height \times Width) \]

Given dimensions:

  • Length \( L = 33.93 \) inches
  • Width \( W = 15.81 \) inches
  • Height \( H = 17.69 \) inches

Now, we calculate each part of the surface area:

  1. Area of the bottom: \[ \text{Area of Bottom} = L \times W = 33.93 \times 15.81 \]

  2. Area of the front and back (two identical rectangles): \[ \text{Area of Front and Back} = 2 \times (H \times L) = 2 \times (17.69 \times 33.93) \]

  3. Area of the sides (two identical rectangles): \[ \text{Area of Sides} = 2 \times (H \times W) = 2 \times (17.69 \times 15.81) \]

Now we can compute each area:

  1. Area of the bottom: \[ 33.93 \times 15.81 \approx 536.3353 \text{ in}^2 \]

  2. Area of the front and back: \[ 2 \times (17.69 \times 33.93) \approx 2 \times 599.9357 \approx 1199.8714 \text{ in}^2 \]

  3. Area of the sides: \[ 2 \times (17.69 \times 15.81) \approx 2 \times 279.0649 \approx 558.1298 \text{ in}^2 \]

Now, we sum these areas to find the total surface area:

\[ S = 536.3353 + 1199.8714 + 558.1298 \]

Calculating this gives:

\[ S \approx 2294.3365 \text{ in}^2 \]

Rounding to the nearest hundredth, the surface area is:

\[ S \approx 2294.34 \text{ in}^2 \]

None of the provided answers match the exact calculation, but rounding error could be a factor. The closest response is:

2,296.23 in²