The 3 inside angles need to equal 180.
Subtract E from 180 to find the sum of the other two angles:
180 - 104 = 76
Now because EF ≅ DE , angle D and F would be the same so divide 76 by 2
Angle D = 38
Answer:
k=9
Step-by-step explanation:
4/3 = 8/6 = 12/9
The percentage would be 51% but if you want to round it the answer is 50%
19.1 inches. I hope this helps you!