AMC 8 2023 Problem 19
AMC8 2023 年第 19 题
三角形★★★☆☆
An equilateral triangle is placed inside a larger equilateral triangle so that the region between them can be divided into three congruent trapezoids, as shown below. The side length of the inner triangle is $2/3$ the side length of the larger triangle. What is the ratio of the area of one trapezoid to the area of the inner triangle?
如图所示，一个等边三角形在另一个更大的等边三角形内部，它们之间的区域可以分成三个全等的梯形．内部三角形的边长是大三角形边长的$2/3$，问一个梯形的面积与内部三角形的面积之比是多少？
- A.1: 3
- B.3: 8
- C.5: 12
- D.7: 16
- E.4: 9
正确答案 · Correct Answer
C
解析 · Solution
解析整理中
继续练习