Mathematics, 29.01.2021 01:00 Diodorant

Which equation could be used to find the value of x? Triangle DEF where angle E is a right angle. DE measures x. DF measures 55. Angle F measures 49 degrees.

cos 49° = x over 55
cos 49° = 55 over x
sin 49° = x over 55
sin 49° = 55 over x

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Which equation could be used to find the value of x? Triangle DEF where angle E is a right angle. D...