每日一题

Mathematics>Standard Multiple Choice

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

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?

(A) 6.99
(B) 7.00
(C) 7.99
(D) 8.10
(E) 14.00

答案和解析

答案：C

解析：

Since the radius of the circle is 4, the diameter of the circle is 8. In a circle, the diameter is longer than any segment that can be placed entirely inside the circle. Therefore, segments of length 8.10 or length 14.00 could not be placed entirely within the circle, and the correct answer is 7.99.