Answer:

Step-by-step explanation:
Notice that all three sides of the given triangle has one tick mark.
This means that all three sides are congruent, meaning that we have an equilateral triangle.
And for equilateral triangles, all three angles are also congruent.
So:

Also, recall that the interior angles of a triangle is always 180. Thus:

Substitute:

Combine like terms:

Substitute:

Multiply:

Thus:

And we are done!
I believe it's D, 104.82 feet.
Answer:
132
Step-by-step explanation:
calculator says so.
Don’t u hate when it’s says explain how u did it?
340 is the answer divid them by 2 and there ur answer hope it helped