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Can someone please help me.Number 2.I just need to solve for x and y using trigonometry

Can someone please help me.Number 2.I just need to solve for x and y using trigonometry-example-1
User Tirza
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1 Answer

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Given the Right Triangle, you can identify that has two equal sides. Therefore, you can determine that it is a Right Isosceles Triangle.

By definition, a Right Isosceles Triangle has two equal sides and two equal angles, and the third angle measures 90 degrees (also called "Right Angle").

Therefore, you can determine that, in this case:


x=y

By definition, the sum of the interior angles of a triangle is 180 degrees. Then, knowing that a Right Isosceles Triangle has two equal angles and another angle that measures 90 degrees, you can set up this equation:


x+y+90\text{\degree}=180\text{\degree}
x+x+90\text{\degree}=180\text{\degree}

(Since "y" and "x" have the same measure, you can rewrite the equation using any of them, as you can see above)

Solving for "x", you get:


2x=180\text{\degree}-90\text{\degree}
x=(90\degree)/(2)
x=45\degree

Hence, the answer is:


x=45\degree
y=45\degree
User Amachree Tamunoemi
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