Find the missing side of each triangle. Round your answers to the nearest tenth if necessary. (Please Show your work)

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[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
x² = (6,9)² + (5,3)²
x² = 47,61 + 28,09
x² = 75,7
x = 8,7yd✔