Question

a side of the triangle below has been extended to form an exterior angle of 66°. find the value of x.
answer attempt 2 out of 2
x =

Explanation:

Step1: Use the exterior angle property

The exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles. Here, \(x + 18^{\circ}=66^{\circ}\)

Step2: Solve for \(x\)

Subtract \(18^{\circ}\) from both sides of the equation: \(x=66^{\circ}- 18^{\circ}\)

Answer:

\(x = 48\)