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ch4aika [34]
3 years ago
5

Will mark brainliest, please answer:)

Mathematics
1 answer:
BartSMP [9]3 years ago
3 0

Answer:

√135

Step-by-step explanation:

3^2+b^2=12^2

9+b^2=144

9-9+b^2=144-9

b^2=135

√135=b

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Answer:

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Step-by-step explanation:

From the question given:

Length (L) = 2x²

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Clear bracket

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