Math Challenge 22

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Given the diagram of boxes below, determine, in the fastest possible way, the area of the dark blue region.

Assume the individual boxes to be 1 unit square in area.

Give your answer in the comment space, please.

Maths does not involve plain counting.

It involves some form of intelligence to get things going.

:-)

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Artistic Mathematical Lantern

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Have you wondered what can maths do to art?


Below is a lantern made by a mathematical expression.

With maths, you can be assured of producing wonderful images when you have the appropriate expression.


Do create some for enjoyment.


Maths is interesting.


:-)