ANSWER:
The value of x is 43°
STEP-BY-STEP EXPLANATION:
We know that the sum of the internal angles in a triangle is equal to 180°
We also know that the sum of the internal and external angle is also equal to 180°
Therefore:
The first thing is to calculate the value of the internal angles, like this
[tex]\begin{gathered} 180-133=47 \\ 180-90=90 \end{gathered}[/tex]
replacing:
[tex]\begin{gathered} 180=47+90+p \\ p=180-47-90 \\ p=43 \end{gathered}[/tex]
