A trapezium with its diagonals. Two areas are given. What faction is coloured?
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Solution
The coloured fraction is y/(x+y).
![](https://mirangu.com/wp-content/uploads/2021/07/LeaningTowerSolution.jpg)
Visual solution
![](https://mirangu.com/wp-content/uploads/2021/07/LeaningTowerDavid.jpg)
Poem
La torre pendente di Pisa
With an unstable and slight foundation
All of marble stones in gothic style,
A tower for observation
Never one thought about it’s destruction
As a solution
Some tried a good restauration
and stabilisation
The tower remains a symbol of elevation
![](https://mirangu.com/wp-content/uploads/2021/07/LeaningTowerBella.jpg)