The sum of the interior angles of any triangle is always equal to 180^°. This is a fundamental property of triangles.

We are given that angle A is 50^° and angle B is 30^°. We substitute these values into the angle sum property equation.

Answer: The measure of angle C is $100^\circ$ .

The sum of the interior angles of any triangle is always equal to $180^\circ$ . This is a fundamental property of triangles.

We are given that angle A is $50^\circ$ and angle B is $30^\circ$ . We substitute these values into the angle sum property equation.

First, we add the known angles, $50^\circ$ and $30^\circ$ , which gives us $80^\circ$ . Now the equation is simplified to find C.

To find angle C, we subtract the sum of the known angles ( $80^\circ$ ) from the total sum of angles in a triangle ( $180^\circ$ ).