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1 2 5 Given the figure below, find the values of x and z. (9x + 70) ) (6x + 80 80) BE

1 2 5 Given the figure below, find the values of x and z. (9x + 70) ) (6x + 80 80) BE-example-1
User Amin Mousavi
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1 Answer

18 votes
18 votes

The two angles with "x", are linear pairs, which means they fall on the same line and add up to 180 degrees.

Thus, we can write and solve for x:


\begin{gathered} (6x+80)+(9x+70)=180 \\ 15x+150=180 \\ 15x=180-150 \\ 15x=30 \\ x=(30)/(15) \\ x=2 \end{gathered}

Now, z is a vertical angle with "6x+80" angle. They are equal. First,

x is 2, so

(6x+80) is 6(2)+80 = 12 + 80 = 92

So, z is equal to 92 degrees

x = 2

z = 92

User Ilenia
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