Mathematics for IGCSE & O level - Coordinate Geometry (Section 1 - No. 39)
Which of the following is the formula for calculating the length of a line segment with endpoints (x1, y1) and (x2, y2)?
√(x2 - x1) + (y2 - y1)
√(x2 - x1)^2 + (y2 - y1)^2
(x2 - x1)^2 + (y2 - y1)^2
√(x1 + x2)^2 + (y1 + y2)^2
Explicació
The length of a line segment is found using the distance formula: √((x2 - x1)^2 + (y2 - y1)^2).