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Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 2)

What is the length of the line segment between the points (1, 1) and (4, 5)?
3
4
5
25

설명

Using the distance formula: sqrt((4-1)^2 + (5-1)^2) = sqrt(9 + 16) = 5.

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