Question

Help!!! Will medal and fan!
True or false?
The distance between points (1,2) and (x1,y1) is the square root of (x1-1)^2+(y1-2)^2.

Answer 1

yeah for a line connecting 2 points you can form a right triangle with the legs as the components in x and y direction lengths

d^2 = side^2 + side2^2 pythagorean a^2+b^2=c^2 for right triangle lengths

Answer 2

there it is

Answer 3

Okay, true. Thanks :)