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Leokris [45]
4 years ago
8

What did my teacher do to get the answer to this question?

Mathematics
1 answer:
agasfer [191]4 years ago
7 0

Step-by-step explanation:

since perimeter is adding all around she took the all the values and added them as above. as you can see 3√2 and 4√2 has the same square root so she added 3+4 which gave us 7√2 and then added the 2√5 but since they don't have the same square root we can't add them like we did in the other so we'll just put 7√2+2√5

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