Question

point O is the center of the regular nonagon shown below. find the angle of rotation about O that maps F to IA....° rotation about O maps F to I

Answer 1

the angle between each side or vertex of an nonagon is 40 °

we have the sum of 3 angles

FOG=40

FOH=40

HOI=40

so the rotaton about O maps F to I is

$40+40+40=120$

120°