Answer:
A would be at (-2,5) if reflected across the y axis
The other angle should be 76 degrees since every quadrilateral has 360 degrees total with 4 angles. So if you add th numbers up and subtract it from 360, you woukd get 76 degrees.
Since there is no options, i will list several reasons that help bloggers decide how to present information :
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<h3>
Answer: 72.54</h3>
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Explanation:
We set up a cosine ratio, since we want to connect the adjacent and hypotenuse. Then we'll use the inverse cosine, which is also known as arccosine, to isolate the angle value.
This is what your steps could look like:
cos(angle) = adjacent/hypotenuse
cos(L) = LM/LN
cos(L) = 18/60
cos(L) = 0.3
L = arccos(0.3)
L = 72.542396876278 which is approximate
L = 72.54 degrees approximately
Make sure your calculator is in degree mode.
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