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Sagot :
Answer:
Fourth Option
Step-by-step explanation:
Pythagorean Theorem:
[tex]a^{2} + b^{2} = c^{2}[/tex]
Solution
[tex]4^{2} + b^{2} = 12^{2}[/tex]
[tex]b^{2} + 16 = 144[/tex]
[tex]b^{2} = 128[/tex]
[tex]b = \sqrt{128} = 11.3[/tex]
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