Does the number of units in the circumference of circle O
equal the number of square units in its area?
- The area of circle O is 4? square
units
- The radius of the circle is 2.
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Statement (1) BY ITSELF is sufficient,
but statement (2) by itself is not sufficient. |
|
|
Statement (2) BY ITSELF is sufficient,
but statement (1) by itself is not sufficient. |
|
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Both statements TAKEN TOGETHER
are sufficient, but NEITHER statement BY ITSELF is sufficient. |
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EACH statement BY ITSELF is sufficient. |
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The two statements TAKEN TOGETHER are NOT
sufficient.
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Countinue
Focus
on the question stem.
To compare the circumference of a circle to the area of a circle, all
you need is the radius, diameter, circumference, or area of the circle.
Consider
each statement separately.
Statement (1) is sufficient. If you know the area of a circle you can
find the radius of the circle (remember the area formula from the previous
page?), and once you know the radius you can use that to find the circumference.
So, eliminate Choices (C) and (E).
Statement (2) is sufficient. If you know the radius of a circle, you
can find the area and the circumference of the circle.
Next to display next topic in the chapter.
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