Distance between points (1, 8) and (2, 1)

Given Coordinates: x1 = 1  y1 = 8,  x2 = 2  y2 = 1
Distance Formula: d = (x2 − x1)2 + (y2 − y1)2
Substitute the given coordinates into the Distance Formula and Simplify:
d = (2 − 1)2 + (1 − 8)2
d = 12 + (-7)2
d = √1 + 49
d = √50
d = √25 * 2
d = √25 * √2
d = 5√2
Therefore, the distance between the points (1, 8) and (2, 1) is equal to 5√2
Note: As a decimal number, 5√2 ≈ 7.0710678118655

The solution above and other related solutions were provided by the Distance Between Two Points Application.