Question

In ΔWXY, the measure of ∠Y=90°, WX = 7.9 feet, and XY = 6.7 feet. Find the measure of ∠X to the nearest tenth of a degree.

Answer 1

X=31.9943≈32

Explanation:

cosX=

hypotenuse

adjacent=

7.9

6.7

cos X = \frac{6.7}{7.9}

cosX=

7.9

6.7

​

X=\cos^{-1}(\frac{6.7}{7.9})

X=cos

−1

(

7.9

6.7

​

)

X=31.9943\approx 32^{\circ}

X=31.9943≈32

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