Problem 748. Wrapping the Tower of Pisa

Created by Paul Lambrechts

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The famous artist Christo Vladimirov Javacheff, who likes pizza, wants to wrap the well-known Italian tower in paper. It is a circular tower with radius s [m] and height a [m] and he decided to neglect the fact that it was leaning. How many square meters of paper should he bring as a minimum? Don't forget the top, although it is not so nice!

Note: inspired on problem 167

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Last Solution submitted on Feb 22, 2025

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Richard Zapor on 5 Jun 2012

y-correct is incorrect.
Surface area is 2*pi*r*h+pi*r^2.
The solution claims pi*r*h+pi*r^2.
Please correct. 6/05/12

@bmtran (Bryant Tran) on 6 Jun 2012

agree

James on 6 Jun 2012

Whew...I thought I was being stupid and getting the formula wrong.

Ned Gulley on 6 Jun 2012

I went ahead and fixed the test. Thanks for the comments.

David Verrelli on 28 Apr 2018

This Problem may as well be deleted. There is only one case in the Test Suite, and the required formula is given both in the Comments and within the Test Suite itself. There is no challenge when Players can simply copy-and-paste to 'solve' the Problem.

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