Answer: 9.32
Step-by-step explanation:
25² + BC² = 30²
BC² = 30² - 25²
BC² = 275
BC = 5√11
25² + BD² = 36²
BD² = 36² - 25²
BD² = 671
BD = √671
x = √671 - 5√11
x = 9.32
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