Yes. 116° is your answer.
These polygons are <em>similar</em>, meaning that while their side measurements are not the same (but are ratioed), the measurements of the angles are still the same measurements.
hope this helps
<span>2 quarts fill 8 cups,then 5 quarts should fill up 16 1/2 cups
</span>
18b-15
-3x-6b=18b
-3x5=-15
hope this helps, if it doesn't don't hesitate to tell me :)