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Triangle has angles of x, 2x and x+8Find x

User ElementW
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1 Answer

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Given the angles of a triangle:

x, 2x and x + 8

And we have that the sum of the internal angles of a triangle is equal to 180°. Therefore:


x+2x+x+8=180

Then, we solve for x:


\begin{gathered} 4x+8=180 \\ 4x+8-8=180-8 \\ 4x=172 \\ (4x)/(4)=(172)/(4) \\ x=43 \end{gathered}

Answer: x = 43

User Galdikas
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