jor66
23.02.2021 •
Mathematics
If ΔXYZ is reflected over the x−axis , its image is ΔX'Y'Z' . If m∠X=28∘ and m∠Y=31∘. What is the measure of ∠Z'
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Ответ:
To find x you can use cosine since you know the adjacent side and the hypotenuse. Remember that for cosine it is adjacent over hypotenuse
cos(x) =
cos(x) =
To find the x we must take the inverse of cosine:
x = 67.1146...
x ≈ 67.1 degrees
Hope this helped!
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