Answer:
DE = 1.2ft
Step-by-step explanation:
It's actually a lot easier for someone to just draw a diagram. I recommend it in the future!
This is a right-angle triangle, so I'm guessing it's Sohcahtoa.
cos23° = DE/1.3
DE = 1.3cos 23°
DE = 1.1966...
Rounded:
DE = 1.2
