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Roderick wants to draw a circle for which the numerical value of the circumference is greater than the value of the area. What lengths can he use for the radius

User Gannon
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2 Answers

7 votes

Answer:

(A) 1/2 (B) 1 (C) 1.5

Explanation:

The first three choices will result in a numerical value for the radius that is smaller than the area.

also...

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User Aravind A R
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3 votes
Let r = radius of the circle.
The circumference is C = 2πr.
The area is A = πr^2.

Because the circumference is greater than the area, therefore

2 \pi r\ \textgreater \ \pi r^(2)

1\ \textgreater \ ( \pi r^(2) )/(2 \pi r)

1\ \textgreater \ (r)/(2)

Therefore the radius should satisfy
r < 2
User Lanti
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