The hexagon gikmpr and fjn are regular. the dashed line segments form 30 degree angles. what is? (attached)

We know that for each triangle made up by dashed line segment forms 30° angles, so, for example, ∠GOH is 30° and then ∠HOI is 30°

Rotating the shape 240° around the centre is the same as counting in 30°

The triangle GOH will first fit the triangle HOI then triangle IOJ and so on until it has completed 8 times 30° turn. Its final position is shown in the diagram below

Idon’t exactly understand but i think dbc=rst