the name of the horizontal axis is A. x-axis
The measure of angle R is 50° because x=3.
Answer:
1.76
Step-by-step explanation:
Answer: 75
/2 or 
Step-by-step explanation:
-To find the area of a sector, you need the equation:

-Set the measurements onto the equation:
× 
-Then, you solve:
× 
× 
× 
× 
-Result:
or 