Solve for c
c=20
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c≔20
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c=\sqrt{256+12^{2}}
Calculate 16 to the power of 2 and get 256.
c=\sqrt{256+144}
Calculate 12 to the power of 2 and get 144.
c=\sqrt{400}
Add 256 and 144 to get 400.
c=20
Calculate the square root of 400 and get 20.
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