C) 18 is not a prime number 1, 2, 3, 6 ,9, 18 Are all factors of 18, making it not prime
Answer from: Quest
circle area = pi * radius^2
if diameter = 10 then radius = 5
circle area = pi * 5^2
circle area = pi * 25
circle area = 78.5398163397 square units
step-by-step explanation:
Answer from: Quest
How many groups are there?
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