zoeselker zoeselker

05-07-2021
Mathematics

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How many marbles do you need to be able to arrange them into the shape of an equilateral triangle with 75 rows

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nogohobobobo nogohobobobo

06-07-2021

Answer:

2850

Step-by-step explanation:

1+2+3+4+5+6+7...74+75

just add up all the numbers from 1 to 75

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