Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Geometry §14.6 Angles formed by Tangents: Tangent: A line that
Document related concepts
Pythagorean theorem wikipedia , lookup
Multilateration wikipedia , lookup
History of geometry wikipedia , lookup
Analytic geometry wikipedia , lookup
Rational trigonometry wikipedia , lookup
Cartan connection wikipedia , lookup
Euler angles wikipedia , lookup
Perceived visual angle wikipedia , lookup
Affine connection wikipedia , lookup
Problem of Apollonius wikipedia , lookup
Differentiable manifold wikipedia , lookup
Metric tensor wikipedia , lookup
Euclidean geometry wikipedia , lookup
Trigonometric functions wikipedia , lookup
Riemannian connection on a surface wikipedia , lookup
Transcript
Geometry §14.6 Angles formed by Tangents: Tangent: A line that intersects a circle in one point (the point of tangency). Theorem: If a line is tangent to a circle, then it's perpendicular to the radius containing the point of tangency. There are 3 types of angles that can be formed with a tangent... • Measure of angle formed by tangent and chord is ½ intercepted arc. 1 • Measure of angle formed by tangent and secant is ½ the difference intercepted arc. • Measure of angle formed to by two tangents is ½ the difference of intercepted arc. 2 3 Examples: Homework: §14.5 #19 §14.6 #1-9, 13, 14, 18
