Angle Properties..Source: https://images.google.com/imgres?imgurl=http%3A%2F%2Fimg.docstoccdn.com%2Fthumb%2Forig%2F2787040.png&imgrefurl=http%3A%2F%2Fmytourvn.net%2Fproperties-of-circles-worksheet%2F&docid=PCSeyqJ_9YL0EM&tbnid=ichWFaFPoiTdtM%3A&vet=1&w=1241&h=1754&source=sh%2Fx%2Fim
