1. TAB 1 TAB 1 TAB 1 TAB 1 Geometry/Trig Name: __________________________
Unit 8 GSP Circles Lab Date: ___________________________
Circles Day 1 - Section 9.2
Section 9.2: Theorem 9-1
TAB 1
Sketch the diagram:
Fill in the Measurements
mQMA
TAB 1
Conclusion (Theorem 9-1): If a line is tangent to a circle, then the line is _________________________ to the radius at the point of tangency.
Example 1: B is a point of tangency of Circle Q.
Example 2: JT is tangent to Circle O at point T. J T O 9 8 K
TAB 1
What type of triangle is QBC?
If QB = 6 and QA = 9, find AB.
JT = _______ OT = _______
(d) mKOT = ________
TAB 1

2. TAB 2 TAB 2 TAB 2 TAB 2 DON’T FORGET TO TAKE QUIA QUIZ CIRCLES DAY 1!!
Geometry/Trig
Unit 8 GSP Circles Lab
Circles Day 1 - Section 9.2 – Page 2
Section 9.2 Corollary
TAB 2
Sketch the diagram:
Fill in the Measurements: BA BC
TAB 2
Conclusion (Corollary): Segments that are tangent to a circle from a point are ___________________.
Example 1: B
B and C are points of tangency. A
What type of triangle is DBAC?
_______________________
mÐBAC = 32
mÐABC = ________
mÐBCA = ________ C
TAB 2
Example 2: A C B
4x + 2
½x + 9
B and C are points of tangency.
x = __________
BA = _________
CA = _________
TAB 2
DON’T FORGET TO TAKE QUIA QUIZ CIRCLES DAY 1!!