Question

a side of the triangle below has been extended to form an exterior angle of 130°. find the value of x.
answer attempt 1 out of 2
x =

Explanation:

Step1: Use the exterior angle property of a triangle

The exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles.
So, \(x + 15=130\)

Step2: Solve for \(x\)

Subtract \(15\) from both sides of the equation:
\(x=130 - 15\)
\(x = 115\)

Answer:

\(115\)