For locating contours by indirect method, two guide points A (Elevation = 600 m) and B (Elevation = 610 m) are established. The horizontal distance between the two points on the plan is 1 cm. Find the distance of the contour of 605 m from point A (on the plan).
1
0.5 cm
2
0.5 m
3
1 cm
4
1 m
5
5 m