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08-05-2020
Mathematics

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In ΔDEF, the measure of ∠F=90°, the measure of ∠D=49°, and DE = 3.1 feet. Find the length of FD to the nearest tenth of a foot.

Respuesta :

08-05-2020

Answer:

2.0

Step-by-step explanation:

cos 49 = FD/3.1

FD = 3.1 cos 49 = 2.033 = 2.0

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