EXPLANATION
Applying the Pythagorean Theorem we can get the value of c as shown as follows:
[tex]c^2=3^2+6^2[/tex]
Solving the powers:
[tex]c^2=9+36=45[/tex]
Applying the square root to both sides:
[tex]c=\sqrt[]{45}[/tex]
Simplifying:
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