求最大面积

¥ 500

¥ 500 猿急送 Technology & Programming China
11 days ago

Description

直径1100的圆 画长方形，长要是10的倍数，最小长方形为长为420，宽为整数，从中间那个1090最长的长方形往上数上半圆的长方形的个数为30个，整个圆的里面的长方形个数为30x2+1=61个，求所有长方形加起来的最大面积

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