题目来源
题目来源1 : KMF-xd
正确率：89%
难度：2
最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
The design indicated above was made from a circular piece of cardboard by dividing it into sections of equal size and then shading every other section. If the design has a diameter of 30 centimeters, the area of the shaded portion shown is how many square centimeters?
B显示答案
以上解析由 考满分老师提供。
