Day 2 of Circles 11-1 Tangent Lines.

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Presentation transcript:

Day 2 of Circles 11-1 Tangent Lines

Warm-Up Find the center 2. Write the eqn of And radius of each circle the circle through the point with the given radius:

Review: What is a circle? A circle is a set of all points in a plane equidistant from a given point, the center. Radius: segment with one Endpoint at the center and the Other endpoint on the circle **All radii of a circle are congruent**

Name: A

B is the point of tangency.

A tangent line and a radius of a circle are perpendicular at the point of tangency.

Two segments tangent to a circle from the same point outside the circle are congruent.

Ex 1.

Ex,2

Ex 3:

Ex 4:

Ex 5

Ex. 6 Find the distance between the two pulleys

Ex 7: find the Perimeter of ABC.

Complete the worksheet