Math - trig

alt angles =, // lines

alt seg thm

angles on same arc =

co - int angles sum 180

corr angles =, // lines

angle at ctr = 2x angle at circ

ext angle = sum opp int angles

ext angle cyclic quad - int opp angle

isos tri, base angle =

angles on line sum 180

opp angles cyclic quad sum 180

angle in semi circle = 90

angle in tri sum 180

tan rad thm

vert opp angles =

angle at ctr = 2x anglle at circ