Question

What is the value of p?133990°OA. 133°B. 90°C. 43°O D. 47°

Answer 1

The value of x is 43°

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

`\begin{gathered} 180-133=47 \\ 180-90=90 \end{gathered}`

replacing:

`\begin{gathered} 180=47+90+p \\ p=180-47-90 \\ p=43 \end{gathered}`