ONE QUESTION, ONE STEP
ZX-1D876B954C2025年10月国际A卷 · 第 21 题
2025年10月国际A卷 · 原库模块 2 · Q21 原库参考解析
In triangle \( RST \), angle \( T \) is a right angle, point \( L \) lies on \( RS \), point \( K \) lies on \( ST \), and \( LK \) is parallel to \( RT \). If the length of \( RT \) is 63 units, the length of \( LK \) is 21 units, and the area of triangle \( RST \) is 252 square units, what is the length of \( KT \), in units?
参考答案：
解题思路
容易忽略的一步
