Answer:
r=6.4
Step-by-step explanation:
Get r by itself you need to add 8.5 to get 6.4
Hope this helps (:
The answer = (A) 4/78.
alternative form = 39/8.
AED and BEC
Supplementary angles are angles that add up to 180 degrees.
AEB + AED = 180.
AEB + BEC = 180.
Hope this helps!
I think the answer is b. cos(pi theta)= -0.6
so
. Plugging that into BDC we get 11