Angle Relationships and Triangle Properties

The video tutorial explains how to find missing angles in a figure with intersecting lines and triangles. It covers the definitions and properties of vertical and supplementary angles, demonstrating how these concepts help determine unknown angles. The tutorial also discusses the sum of angles in a triangle and provides methods to calculate missing angles using these principles.

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

• 100 degrees

• 70 degrees

• 110 degrees

• 150 degrees

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

• 100 degrees

• 70 degrees

• 150 degrees

• 30 degrees

What is the sum of supplementary angles?

• 90 degrees

• 360 degrees

• 180 degrees

• 270 degrees

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

• 110 degrees

• 70 degrees

• 150 degrees

• 100 degrees

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

• 150 degrees

• 110 degrees

• 70 degrees

• 100 degrees

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

• 90 degrees

• 80 degrees

• 100 degrees

• 110 degrees

What is the sum of all angles in a triangle?

• 180 degrees

• 90 degrees

• 270 degrees

• 360 degrees

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

• 20 degrees

• 60 degrees

• 80 degrees

• 40 degrees

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

• 120 degrees

• 60 degrees

• 100 degrees

• 80 degrees

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

• 70 degrees

• 90 degrees

• 80 degrees

• 100 degrees