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Home > GC > Chapter 9 > Lesson 9.2.2 > Problem 9-71

9-71.

Given the information in the diagram at right, prove that . Write your proof using any format studied so far.  

Proof # 1

	
geometry proof 1

geometry proof

	
geometry proof 4

	
geometry proof 2

	
geometry proof 3

Proof # 2

Proof # 3

Proof # 4

Proof # 5