Answer:
A. 5.19 units
Step-by-step explanation:

Given:
= 81°- Arc length = 7.34 units
Substituting given values into the equation and solving for r:






Slope is 2/5
Step by step you go up 2 and over 5 to reach the next point
Answer:
I have made it in above picture
Step-by-step explanation:

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