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Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer. 

math image

The circle above has center P. Given segments of the following lengths, which is the length of the longest one that can be placed entirely inside this circle?

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In any circle, the longest chord is a diameter. But a diameter does not lie entirely inside the circle, because its endpoints are on the circle. Any segment that lies entirely inside a circle must be shorter than the diameter.

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