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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.
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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.

User Volingas
by
5.2k points

1 Answer

5 votes

Answer:

2.0

Explanation:

cos 49 = FD/3.1

FD = 3.1 cos 49 = 2.033 = 2.0

User Neil Best
by
5.3k points
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