Missing length?? 3 cm 8 cm i need big help

Mathematics

1 answer:

nadezda [96]4 years ago

8 0

Answer: 8.5 (rounded)

Step-by-step explanation:

a squared + b squared = c squared

3 squared= 9

8 squared= 64

64+9=73

the square root of 73 is 8.5 (rounded)

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Step-by-step explanation:

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You can check to make sure your answer is right by entering your proportions into a calculator. For example, $\frac{42}{108}=0.38888888888...$ and $\frac{7}{18}$ also equals $0.38888888888...$ so since they match, we know it is correct.