What is the distance between the points (12,3) and (-8,3)?

Question

3247 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-02-11T14:20:53

The distance between the two points is 20.

The formula for calculating the distance between two points is:

$d = sqrt((color(red)(x_2) - color(blue)(x_1))^2 + (color(red)(y_2) - color(blue)(y_1))^2)$

Substituting the values from the points in the problem gives:

$d = sqrt((color(red)(-8) - color(blue)(12))^2 + (color(red)(3) - color(blue)(3))^2)$

$d = sqrt((-20)^2 + 0^2)$

$d = sqrt(400 + 0)$

$d = sqrt(400) = 20$