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To do this you need to know the visible area in that pyramid since paint can apply only to outer surfers
Use
= (n/2) (n + 1)
= (100/2) (101)
= 5050
This is the number of faces in one surface
since there are 4 surfaces + 1 top surface
= 5050 * 4
= 20 200
The total side area covered by one block is 97* 63
= (97* 63) * 20200
= 123442200cm^2
= 12344.22 m^2
The area of the opened tops
= (100* 100) (97* 97)
= 94090000 cm^2
= 9409 m^2
Total area
= 9409 m^2 + 12344.22 m^2
= 21753.22 m^2
Since paint can apply to 3 sqm
= (21753.22 m^2)/3
= 7251.07 liters
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