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I need help solving this. I have to find the missing angles of the special right triangle

I need help solving this. I have to find the missing angles of the special right triangle-example-1
User Gabriella Giordano
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1 Answer

20 votes
20 votes

We want to solve for the missing sides of the right triangle.

The angles of the triangle are 45,45,90 degrees. therefore, this is an isosceles right triangle. Therefore, the Two shorter legs have the same length.

Therefore;


GI\cong HI

Therefore,


GI=9

To find HG, we usee pythagoras' theorem.


HG^2=GI^2+HI^2


\begin{gathered} HG^2=9^2+9^2 \\ HG^2=2(9)^2 \end{gathered}

Find square roots to get;


HG=9\sqrt[]{2}

User Rkw
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