Answer: B.) x = 6
Explanation:
Pythagoras Theorem a^2 +b^2 =c^2
Additionally divide 8 by 2 since it's an isosceles triangle and it's in the middle.
^2 - 4^2= x^2
52 - 16 = x^2
x^2 = 36
Square root both sides = 6
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