D is the answer for the question
Withhh?? i can help if u want
Answer:
radian
Step-by-step explanation:
A radian is a unit of angle that is equal to the angle created at the center of a circle whose arc is equal in length to the radius.
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It would be
(1) x 
- 
So it's the first option.
Good luck! (:
The first one is D. (2+11)7=7(2+11)
I'm not sure of the second one, I apologize.
