What are the formulas for the measure of angles outside of a circle

The video tutorial covers the different types of angles related to circles, including those at the center, on the circle, and outside the circle. It explains the properties of secant and tangent lines and provides formulas for calculating angles formed outside the circle. The tutorial also includes examples to demonstrate the application of these formulas.

What are the possible positions of angles in a circle?

• At the center, on the circle, or at the intersection of two lines

• Only at the center

• Only on the circle

• Only at the intersection of two lines

How many times does a tangent line intersect a circle?

• Never

• Three times

• Twice

• Once

What is the definition of a secant line?

• A line that intersects the circle once

• A line that never intersects the circle

• A line that intersects the circle twice

• A line that is parallel to the circle

What is the formula to find the measure of an angle outside the circle?

• The measure of one arc

• Twice the measure of one arc

• The sum of the measures of two arcs

• 1/2 the difference of the measures of two arcs

When calculating angles outside the circle, what must be done to the arc measures?

• Divide one by the other

• Add them together

• Subtract one from the other and multiply by 1/2

• Multiply them