AMC 8 2025 Problem 24
AMC8 2025 年第 24 题
四边形与多边形★★★★☆
In trapezoid , angles and measure and AB = DC. The side lengths are all positive integers, and the perimeter of is 30 units. How many non-congruent trapezoids satisfy all of these conditions?
在梯形ABCD中，∠B = ∠C = 60°，且AB = DC。该梯形的各边长均为正整数，其周长为30个单位。请问一共有多少个满足以上全部条件的非全等梯形？
- A.0
- B.1
- C.2
- D.3
- E.4
正确答案 · Correct Answer
E
解析 · Solution
解析整理中
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