Answer:
75. by angle sum property of an traingle
Answer:
6π Km
Step-by-step explanation:
The arc length is calculated as
arc = circumference of circle × fraction of circle
= 2πr × 
= 2π × 9 × 
= 18π × 
= 6π Km ← exact value
Answer:
if it a worksheet search the question online and the answer key comes up
Step-by-step explanation:
Answer: A. It is more susceptible to bias than would be a simple random sample.
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