Question

what is the value of y? 99° 45° degrees

Explanation:

Step1: Identify vertical angles

The angle opposite to \(45^\circ\) in the triangle is also \(45^\circ\) (vertical angles are equal).

Step2: Use triangle angle sum

The sum of angles in a triangle is \(180^\circ\). So, \(y + 99^\circ+ 45^\circ = 180^\circ\).

Step3: Solve for \(y\)

\(y=180^\circ - 99^\circ - 45^\circ = 36^\circ\).

Answer:

\(36\)