This geometry video tutorial teaches how to determine interior and exterior angles in a circle using chords, tangents, and secants. It covers central angles, inscribed angles, arc measure, tangent chord angles, and finding a circle’s center. An interior angle is formed at the intersection of two lines that intersect inside a circle. The measure of an interior angle is the average of the measures of the two arcs cut out of the circle by those intersecting lines.
Inscribed angles subtended by the same arc are equal, while central angles subtended by arcs of the same are equal. The measure of an interior angle is the average of the measures of the two arcs cut out of the circle by those intersecting lines. The measure of an angle formed by a chord and a tangent that intersect on a circle is half the measure of the intercepted arc.
When two chords intersect inside a circle, four angles are formed. At the point of intersection, two sets of congruent vertical angles are formed in the corners. Inscribed angles are formed by two radii with the vertex, while central angles are formed by two radii with the vertex.
In conclusion, this geometry video tutorial provides a comprehensive guide on how to find angles in a circle, including the properties of angles, their theorems, and formulas. By understanding these concepts and their applications, students can better understand and apply geometry concepts in various situations.
📹 Finding Angles Measures When Lines Intersect INSIDE The Circle
This will help you in your Geometry class and in life.
📹 Everything About Circle Theorems – In 3 minutes!
This is a graphic, simple and memorable way to remember the difference from a chord or a tangent or a segments and sectors!
Add comment