(英文)SAT数学题.请解释题意,并解答.(我没看懂它问的是什么,所以不会做)All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining a

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(英文)SAT数学题.请解释题意,并解答.(我没看懂它问的是什么,所以不会做)All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining a
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(英文)SAT数学题.请解释题意,并解答.(我没看懂它问的是什么,所以不会做)All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining a
(英文)SAT数学题.请解释题意,并解答.(我没看懂它问的是什么,所以不会做)

All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining any two points in the array without passing through any other point ?

(英文)SAT数学题.请解释题意,并解答.(我没看懂它问的是什么,所以不会做)All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining a
点与点,相邻两点之间的距离是2.求两点连成的最长线段的长度(要求此线段中间不经过其他的点),也就是对角线所形成的线段是不符合要求的.
所以最长的是squareroot(2^2+4^2) = 2sqrt(5)