If the ratio of the area of a sector to the area of the circle is 2：3. what is the ratio of the length of the arc in the sector to the circumference of the circle? -题库考试答案搜索网

If the ratio of the area of a sector to the area of the circle is 2：3. what is the ratio of the length of the arc in the sector to the circumference of the circle?

单选题

2022-06-16 22:38

A、3/2
B、2/3
C、4/9
D、1/4
E、9/4

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正确答案

B

试题解析

The ratio of sector area to circle area is proportional to the ratio of sector arc length to circumference.

标签：国外英语考试美国学术能力评估考试（SAT）

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