Students will be able to solve problems involving tangent lines of circles and circumscribed angles with 80% class accuracy!

​Objective

GM: G-C.A.2 Identify and describe relationships among inscribed angles, radii, and chords, including the following: the relationship that exists between central, inscribed, and circumscribed angles; inscribed angles on a diameter are right angles; and a radius of a circle is perpendicular to the tangent where the radius intersects the circle

​Standard

Standard and Learning Objective

Point of tangency

tangent segment

A______________ is an angle formed by

two rays from a common endpoint that are tangent to a circle.

A circumscribed angle is an angle formed by

two rays from a common endpoint that are tangent to a circle.

Let's Practice!