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AMC8 2024

AMC8 2024 · Q6

AMC8 2024 · Q6. It mainly tests Geometry misc, Misc.

Sergai skated around an ice rink, gliding along different paths. The gray lines in the figures below show four of the paths labeled P, Q, R, and S. What is the sorted order of the four paths from shortest to longest?
Sergai 在冰场上滑冰,沿着不同的路径滑行。下图中的灰色线条显示了四个标记为 P、Q、R 和 S 的路径。这四个路径从最短到最长排序的顺序是什么?
stem
(A) \ P,Q,R,S \ P,Q,R,S
(B) \ P,R,S,Q \ P,R,S,Q
(C) \ Q,S,P,R \ Q,S,P,R
(D) \ R,P,S,Q \ R,P,S,Q
(E) \ R,S,P,Q \ R,S,P,Q
Answer
Correct choice: (D)
正确答案:(D)
Solution
You can measure the lengths of the paths until you find a couple of guaranteed true inferred statements as such: $Q$ is greater than $S$, $P$ is greater than $R$, and $R$ and $P$ are the smallest two, therefore the order is $R, P, S, Q.$ Thus we get the answer $\boxed{\textbf{(D)}~R, P, S, Q}$.
你可以测量路径的长度,直到找到一些确定的推断陈述,如: $Q$ 大于 $S$, $P$ 大于 $R$, 并且 $R$ 和 $P$ 是最小的两个,因此顺序是 $R, P, S, Q$。 因此答案是 $\boxed{\textbf{(D)}~R, P, S, Q}$。
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