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Lilit [14]
3 years ago
6

How many toothpicks are used to create Figure 10? Describe how you found the answer.

Mathematics
1 answer:
finlep [7]3 years ago
5 0
So for the tenth figure you would have 58 toothpicks on the bottom layer and then because for all the layers above you wouldn't need a base, you would just find the number in the next row and from there keep subtracting 4:
58
35
31
27
23
19
15
11
7
3
Now add all these numbers and you should get a total of 229
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