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3 years ago

7. (07.02 MC)

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

7 0

Answer:

$y = 52.02$

Step-by-step explanation:

Given

The attached triangle

Required

Find y

Taking y as a reference , we have:

$Adjacent = 8$

$Hypotenuse = 13$

So:

$\cos(y) = \frac{Adjacent}{Hypotenuse}$

This gives

$\cos(y) = \frac{8}{13}$

$\cos(y) = 0.6154$

Take arccos of both sides

$y = \cos^{-1}(0.6154)$

$y = 52.02$

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