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A student would like to find the height of a statue. The length of the​ statue's right arm is 33 feet. The​ student's right arm is 2 feet long and her height is 5 ⅓ feet. Use this information to find the height of the statue. How close is the approximate height to the​ statue's actual height of 87 ​feet, 9 inches from heel to top of​ head?

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Final answer:

The approximate height of the statue is found to be 88 feet using proportions based on the student's and statue's arm lengths. This approximation is only 3 inches taller than the statue's actual height of 87 feet, 9 inches, showcasing a very accurate estimate.

Step-by-step explanation:

The student wants to find the height of a statue using a similar triangles approach, which falls under the subject of Mathematics. To calculate the approximate height of the statue, we can use the lengths of comparable body parts and their proportions. Since the student's right arm is 2 feet long and their height is 5 ⅓ feet (which is 5.333 feet), we set up a ratio comparing the lengths of the right arms to find the height of the statue:


Statue's height / Student's height = Statue's arm length / Student's arm length


Statue's height / 5.333 feet = 33 feet / 2 feet


Statue's height = (33 feet / 2 feet) × 5.333 feet


Statue's height = 16.5 × 5.333 feet


Statue's height = 88 feet


We found that the approximate height of the statue is 88 feet. Comparing this to the statue's actual height of 87 feet, 9 inches (87.75 feet), we can determine how close the approximation is to the actual height. By subtracting the approximate height from the actual height, we find the difference:


Actual height - Approximate height = 87.75 feet - 88 feet = -0.25 feet (or -3 inches)


This shows that the approximation is 3 inches taller than the actual height of the statue.

User Chris Cudmore
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