AMC 8 1987 Problem 4
AMC8 1987 年第 4 题
比与比例★★☆☆☆
Martians measure angles in clerts. There are 500 clerts in a full circle. How many clerts are there in a right angle?
火星人以 clert 为单位度量角度。一整个圆周有 500 clert。一个直角有多少 clert？
- A.90
- B.100
- C.125
- D.180
- E.250
正确答案 · Correct Answer
C
解析 · Solution
Solution 1
A right angle is of a circle, so it has clerts.
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