1、圆的半径与周长之比
周长c=2*3.14*r
r/c=1/(2*3.14)2*r(这个不等式成立的条件是r>0,而半径肯定是大于0的）
故c>d
gre 请写出过程和原因,
gre 请写出过程和原因,
1、The radius and circumference of circle P are r and c respectively.
r/c 1/3
2、The circumference of circle s The diameter of circle s
我的理解是,r
1、The radius and circumference of circle P are r and c respectively.
r/c 1/3
2、The circumference of circle s The diameter of circle s
我的理解是,r
数学人气：168 ℃时间：2020-03-26 15:39:15
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