Answer:
10.8
Step-by-step explanation:
By sine rule:

Answer:
I'm Not bored im currently Dying while in school :)
Step-by-step explanation:
The answer is 140°
Because we can use exterior angle property here
<u>Exter</u><u>ior</u><u> </u><u>angl</u><u>e</u><u> property</u><u> </u><u>:</u> It states that exterior angle is the sum of two opposite interior angles
y = 120 + 20 = 140°
12 by 8 ft. :) If you multiply the perimeter is 96. I hope this helps!