SAT官方每日一题:2011年9月13日
2012-03-04来源:互联网
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2011年9月13日
考试类型:Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
A right circular cylinder has height and volume . What is the circumference of its base?
A.
B.
C.
D.
E.
正确答案:C 解析: The volume of a cylinder with radius and height is equal to . Therefore, and , so the radius of the cylinder is . The circumference of a circle with radius is equal to ; therefore, the circumference of the base is equal to . |