Answer:
85
Explanation:
Pythagorean Theorem
a^2 + b^2 = c^2
Therefore
68^2 = 4624
51^2 = 2601
4624+2601 = 7225
square root of 7225 = 85
Hypotenuse is 85
Use the Pythagorean theorem to solve:a^2+b^2=c^2
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