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Sagot :
Answer:
5
Step-by-step explanation:
Apply Pythagorean theorem
[tex]13 {}^{2} = 12 {}^{2} + x {}^{2} \\ 169 = 144 + x {}^{2} \\ x {}^{2} = 169 - 144 \\ x {}^{2} = 25 \\ x = \sqrt{25} \\ x = 5[/tex]
Answer:
A. [tex]\displaystyle 5[/tex]
Step-by-step explanation:
Use the Pythagorean Theorem:
[tex]\displaystyle a^2 + b^2 = c^2 \\ \\ 12^2 + b^2 = 13^2 \hookrightarrow 144 + b^2 = 169 \hookrightarrow \sqrt{25} = \sqrt{b^2} \\ \\ \boxed{5 = b}[/tex]
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