Angle Relationships and Triangle Properties

What is the measure of the angle opposite to a 70-degree angle when two lines intersect?

If one angle is 150 degrees, what is the measure of its vertical angle?

What is the sum of supplementary angles?

If one angle is 70 degrees, what is the measure of its supplementary angle?

What is the measure of the angle opposite to a 110-degree angle?

In a triangle, if two angles are 70 degrees and 30 degrees, what is the measure of the third angle?

What is the sum of all angles in a triangle?

If two angles in a triangle are 80 degrees each, what is the measure of the third angle?

What is the measure of the angle opposite to a 100-degree angle?

If an angle is 80 degrees, what is the measure of its supplementary angle?