Question

a side of the triangle below has been extended to form an exterior angle of 132°. find the value of x.
answer attempt 1 out of 3
x =

Explanation:

Step1: Recall exterior - angle property

The exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles.
So, $132^{\circ}=x + 109^{\circ}$.

Step2: Solve for $x$

Subtract $109^{\circ}$ from both sides of the equation: $x=132^{\circ}- 109^{\circ}$.
$x = 23^{\circ}$

Answer:

$23$