Question

question
a side of the triangle below has been extended to form an exterior a
find the value of $x$.
answer attempt 1 out of 2
$x = $

Explanation:

Step1: Find adjacent interior angle

The exterior angle $131^\circ$ and its adjacent interior angle are supplementary, so:
$180^\circ - 131^\circ = 49^\circ$

Step2: Calculate $x$ using triangle angle sum

The sum of angles in a triangle is $180^\circ$. Let the unknown angle be $x$:
$x = 180^\circ - 112^\circ - 49^\circ$
$x = 19^\circ$

Answer:

$19$