Solve for C
C=40\sqrt{29}\approx 215.406592285
Assign C
C≔40\sqrt{29}
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C=\sqrt{6400+200^{2}}
Calculate 80 to the power of 2 and get 6400.
C=\sqrt{6400+40000}
Calculate 200 to the power of 2 and get 40000.
C=\sqrt{46400}
Add 6400 and 40000 to get 46400.
C=40\sqrt{29}
Factor 46400=40^{2}\times 29. Rewrite the square root of the product \sqrt{40^{2}\times 29} as the product of square roots \sqrt{40^{2}}\sqrt{29}. Take the square root of 40^{2}.
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