The obtuse angles are all the same, and in order to find the acute angles you have to subtract the obtuse angle from 180 degrees.
Acute angles will be equal to 180-130 = 50 degrees.
All the obtuse angles will be the same and all the acute angles will be the same.
To the nearest 10th
784.291 = 784.3
The bold number is in the tenths column!
Hope this helps :)