Question

16. The expressions in the figure below represent the measures of two angles. Find the value of x.f ll g

Answer 1

If f and g are parallel, we can say that

Now we know all the angles, we say that

`3x+7x+20=180\degree`

Because:

Therefore we just have to solve it for x now

`\begin{gathered} 3x+7x+20=180 \\ \\ 10x=180-20 \\ \\ x=(160)/(10) \\ \\ x=16 \end{gathered}`

Hence, the value of x is 16