明白了,谢谢!
回答: 上下两个指教三角形,一直角边长度比是3:2,另一直角边也是3:2,所以左边是3/5,右边是2/5;全长左1 3/5,右边2 2/
由 afatgoat
于 2016-11-20 17:50:26
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy