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Answer: 4.12
"you should rlly get to know this"
btw ^2 means to the power to 2
Explanation:
a^2 + b^2 = c^2
in this case, u don't have "a"
the slanted side is "c"
a^2 + 8^2 = 9^2
a^2 + 64 = 81
a^2 = 81 - 64
a^2 = 17
___
a = _/ 17
a = 4.12
Answer:
4.123