A semicircle with three squares. The areas of the smaller squares are given. What is the area of the biggest one?
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Solution
The orange area is 289.

Poem
In Xanadu
There is a dome
Built for pleasure and
Recreation
On the river banks
Down to the ocean
A sacred place with a satanic lover
It was Kubla Khan’s pleasure palace
With icy caves
And sunny places
This are the grounds of the Pleasure Dome
A savage enchanted place
