 # In Exercises 21 and 22, complete each proof. Given : A B ¯ and A C ¯ are tangent to ⊙ o from point A Prove : Δ A B C is isosceles PROOF Statements Reasons 1. ? 1. Given 2. m ∠ B = 1 2 m A B ⌢ and m ∠ C = 1 2 m B C ⌢ . 2. ? 3. m ∠ B = m ∠ C . 3. ? 4. ∠ B ≅ ∠ C . 4. ? 5. ? 5. If two ∠ s of a Δ are ≅ , the side opposite the ∠ s are ≅ . 6. ? 6. If two sides of a Δ are ≅ then Δ is isosceles. ### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
Publisher: Cengage,
ISBN: 9781337614085 ### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
Publisher: Cengage,
ISBN: 9781337614085

#### Solutions

Chapter
Section
Chapter 6.2, Problem 21E
Textbook Problem

## Expert Solution

### Want to see the full answer?

Check out a sample textbook solution.See solution

### Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

See Solution

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects. 