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. cos 49° = x over 55 tan 49° = x over 55 cos

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asked Mar 2, 2021 4.9k views

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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.

cos 49° = x over 55
tan 49° = x over 55
cos 49° = 55 over x
tan 49° = 55 over x

Which equation could be used to find the value of x? Triangle DEF where angle E is-example-1

Mathematics
high-school

Ron Ziroby Romero asked

by Ron Ziroby Romero

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2 Answers

3 votes

The answer is tan 49° = x over 55 (I got it correct on my quiz).

Dmitry Trofimov answered Mar 3, 2021

by Dmitry Trofimov

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6 votes

yes it should be tan 49 degrees = x over 55

Hortman answered Mar 6, 2021

by Hortman

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