Proving Circle Theorems: 5 Proofs in 10 minutes

Physics Ninja looks at the proofs of 5 circle theorems. 1) Angle in a semicircle 2) Angle at circumference and center 3) Angles in the same segment 4) Opposite angle in a quadrilateral 5) Alternate Angles Theorem Visit my Etsy store and support Physics Ninja: https://physicsninja.etsy.com