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HMMT 二月 2000 · GEN 赛 · 第 22 题

HMMT February 2000 — GEN Round — Problem 22

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. An equilateral triangle with sides of length 4 has an isos eles triangle with the same base and half the heigh t ut out of it. Find the remaining area. 77 7
解析
  1. A = so A = A A = A . Also, A = = 4 3, so A = 2 3. Th us, iso eq iso eq eq 2 2 4 p the area is 2 3 . 2 k +1 1