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A student would like to estimate the height of a statue. The length of the statue's right arm is 48 feet. The student's right arm is 2 feet long, and her height is [tex]$5 \frac{1}{3}$[/tex] feet. Use this information to estimate the height of the statue. The actual height of the statue is 127 feet, 5 inches from heel to top of head.

1. What is the estimated height of the statue?
[tex]\square[/tex] (Type an integer or decimal rounded to the nearest tenth as needed.)

2. What is the difference between the approximate height of the statue and its actual height?
[tex]\square[/tex] (Type an integer or decimal rounded to the nearest tenth as needed.)

Sagot :

Let’s break down the problem step-by-step to find the height of the statue and the difference between the estimated and actual heights.

1. Given Information:
- The student's right arm length is 2 feet.
- The student's height is [tex]\(5 \frac{1}{3}\)[/tex] feet, which is the same as 5.3333 feet.
- The statue's right arm length is 48 feet.
- The actual height of the statue is 127 feet and 5 inches.

2. Estimating the Height of the Statue:
- First, let's find the proportionality factor. This is the ratio between the lengths of the statue's arm and the student's arm.

[tex]\[ \text{Proportionality factor} = \frac{\text{Statue's arm length}}{\text{Student's arm length}} = \frac{48}{2} = 24 \][/tex]

- Using this proportionality factor, we can estimate the height of the statue by multiplying the student's height by this factor.

[tex]\[ \text{Estimated height of the statue} = \text{Proportionality factor} \times \text{Student's height} = 24 \times 5.3333 = 128 \text{ feet} \][/tex]

3. Actual Height of the Statue:
- The actual height of the statue is given as 127 feet 5 inches. Convert the inches to feet for easier comparison.

[tex]\[ 5 \text{ inches} = \frac{5}{12} \text{ feet} \approx 0.4167 \text{ feet} \][/tex]

- Therefore, the actual height of the statue in feet is:

[tex]\[ 127 \text{ feet} + 0.4167 \text{ feet} = 127.4167 \text{ feet} \][/tex]

4. Difference Between Estimated and Actual Heights:
- To find the difference:

[tex]\[ \text{Difference} = | \text{Estimated height} - \text{Actual height} | = | 128 - 127.4167 | \approx 0.5833 \text{ feet} \][/tex]

Therefore:
- The estimated height of the statue is 128.0 feet.
- The actual height of the statue is 127.4167 feet.
- The difference between the estimated height and the actual height is 0.5833 feet.

Finally, rounding these results as needed:
- The estimated height of the statue is 128 feet (rounded to the nearest tenth).
- The difference between the estimated height and the actual height is approximately 0.6 feet (rounded to the nearest tenth).