lildukes5352 lildukes5352

22-02-2024
Mathematics

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

a) cos 49° = x / 55
b) tan 49° = x / 55
c) cos 49° = 55 / x
d) tan 49° = 55 / x

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