Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 24)
Which of the following is equal to the length of the line segment connecting the points A(2, 3) and B(5, 7)?
5
25
sqrt(25)
5
Penjelasan
sqrt((5-2)^2+(7-3)^2) = sqrt(3^2+4^2) = sqrt(9+16) = sqrt(25)=5