Playing with light, part two

Consider a second pyramid.

Second pyramid
Second pyramid

There are twelve shadings of this pyramid.

Shading Thirteen
Shading Thirteen
Shading Fourteen
Shading Fourteen
Shading Fifteen
Shading Fifteen
Shading Sixteen
Shading Sixteen
Shading Seventeen
Shading Seventeen
Shading Eighteen
Shading Eighteen
Shading Nineteen
Shading Nineteen
Shading Twenty
Shading Twenty
Shading Twenty-one
Shading Twenty-one
Shading Twenty-two
Shading Twenty-two
Shading Twenty-three
Shading Twenty-three
Shading Twenty-four
Shading Twenty-four

Consider combining the two pyramids in a single square.

Two Pyramids
Two Pyramids

If there are twelve ways to shade each of these pyramids, there are 144 different ways to shade them both.

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