pythagoream thereom
a^2 + b^2 = c^2....a and b are ur legs and c is the hypotenuse
3^2 + 6^2 = c^2
9 + 36 = c^2
45 = c^2...take the sqrt of both sides....this eliminates the ^2
sqrt 45 = c
6.708 rounded = 6.71 = c <===
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