Question

what is the value of d? 30° 50°

Explanation:

Step1: Identify angle - relationship

The sum of the angles in the given figure is related.

Step2: Set up equation

We know that $d + 30^{\circ}=50^{\circ}$.

Step3: Solve for d

Subtract $30^{\circ}$ from both sides of the equation: $d=50^{\circ}- 30^{\circ}$.

Answer:

$20^{\circ}$