A circle has an area of 9 (pi) in2. Which of the following is the circumference of the circle in terms of pi ((pi))?
12 π in
6 π in
9 π in
3 π in
Correct Answer : B
We need to find the radius of the circle from the given value of area. Then, the radius of the circle will be used to find the circumference of the circle.
The first step is to find the radius, r of the circle as
Thus, the circumference of a circle whose area is \(9\pi\ in\ ^2\)is 6 in.
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An independent variable is a change that when modified brings a change in other variables. In this case, the person increases his climbing rate, calories burned, distance traveled and energy used increases. Therefore, the walking speed is the independent variable while other variables are dependent.
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Here we need to find the actual values of the additions and see the trend the student will use to estimate the given problem. The exact sum is as follows
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Explanation
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Explanation
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Explanation
We need to find the radius of the circle from the given value of area. Then, the radius of the circle will be used to find the circumference of the circle.
The first step is to find the radius, r of the circle as
Thus, the circumference of a circle whose area is \(9\pi\ in\ ^2\)is 6 in.
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Explanation
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Explanation
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