Explain the relationship between the area and the radius of a circle.
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Domain x€R
range y€[1,+ the eight that goes side ways}
minimum (0,1)
vertical intercept (0,1)
answer : y=x2+1
range y€[1,+ the eight that goes side ways}
minimum (0,1)
vertical intercept (0,1)
answer : y=x2+1
The area of any circle is equal to 
, where r is the radius.
We know that the diameter is 12. The radius is always half of the diameter, so the radius of our circle must be 6.
Substitute 6 for r in our equation and simplify.
π6² = π6×6 = 36π in²
We know that the diameter is 12. The radius is always half of the diameter, so the radius of our circle must be 6.
Substitute 6 for r in our equation and simplify.
π6² = π6×6 = 36π in²