# Circle chord, tangent, and inscribed angles proofs

Get the most by viewing this topic in your current grade. __Pick your course now__.

### Introduction

### Examples

#### Lessons

- Given: 2AC =AD, 2DF=DH
Prove: $\angle$BEG = 90°

- Given: AC is tangent at B, AC is parallel to DF
Prove: arc BD = arc BF
Given: 2AC =AD, 2DF=DH
Prove: $\angle$BEG = 90°

- Given: EG is tangent at F, AB is parallel to CD
Prove: $\angle$BAF = $\angle$DCF
Given: 2AC =AD, 2DF=DH
Prove: $\angle$BEG = 90°

- Given: AF is tangent to circle X at D, CF is tangent to circle Y at E. DF tangent to both circles
Prove: DF = EF
Given: 2AC =AD, 2DF=DH
Prove: $\angle$BEG = 90°