Question

what is ( mangle1 )?
( mangle1=square^{circ} )

Explanation:

Step1: Apply the exterior angle theorem

The exterior angle theorem states that an exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles.

Step2: Calculate \(m\angle1\)

Here, the two non - adjacent interior angles are \(34^{\circ}\) and \(31^{\circ}\). So, \(m\angle1=34^{\circ}+31^{\circ}\)

Answer:

\(65\)