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HMMT 十一月 2009 · 团队赛 · 第 4 题

HMMT November 2009 — Team Round — Problem 4

专题
Contest Math / 竞赛数学
难度
L3
来源
HMMT

题目详情

英文原题

  1. [ 2 ] Find the height at which the ball first contacts the right side.
解析

英文解析

  1. [ 2 ] Find the height at which the ball first contacts the right side.
    2 2
    Answer: 2 Let h be this height. Then, using the Pythagorean theorem, we see that h + 7 = 53,
    so h = 2.