Here's a diagram showing how to combine angles LDA (in red) and angle ADE (in blue). Hopefully it becomes a bit clearer why these two angles add up to line segment LE. Erase the shared segment DA if it helps show LE better.
See attached image below.
I will help you because I need points like the answers for 4 huhg
First, what's 3 to the power of 8?
Then what's 3 to the power of 10
Now subtract them by each other for your answer
You will need to add all the dimensions together, also know as perimeter