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Mathematics for IGCSE & O level - Coordinate Geometry (Section 2 - No. 9)

What is the distance between the points (1, 1) and (4, 5)?
3
4
5
6

Объяснение

Distance = √((4-1)^2 + (5-1)^2) = √(9+16) = √25 = 5.

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