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Elina [12.6K]
4 years ago
14

A boy is building a pyramid out of building blocks. He puts 20 blocks in the first row, then he puts 19 blocks in the row above,

and so on. Find the total number of blocks he needs.
Mathematics
1 answer:
rjkz [21]4 years ago
8 0

Answer:

<h3>The answer is 206 I believe</h3>

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Step-by-step explanation:

Not needed

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