In a farmer's hexagonal field, when interior angles are put in increasing order, each differs from the next by 20°. Find the measure of each interior angle of the field to the nearest .1 degree.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?