HELP! Ugrent Math Question!?

Question

I completely forgot what the formula to find the distance between two points in a plane is.

Also. Will someone be willing to help me with this problem?
[I know you have to use a formula...]

D(1,3) E(-2,4) and F(0,-4)
I need to find the distance between each pair of points.

Answer 1

This is the distance formula...

http://regentsprep.org/Regents/math/distance/Ldistance.htm

d = sqrt [ (x2 - x1)^2 + (y2 - y1)^2 ]

and your two points are (x1, y1) and (x2, y2)

(x1, y1) and (x2, y2) are the two points between which you are trying to find the distance

There's an example at this website.... follow the steps to find the distances between your points...

http://www.purplemath.com/modules/distform.htm

Hope this helps!!!

Answer 2

You use Pythagoras' Theorem.
Given two points (a,b) and (c,d), the distance between them is:
sqrt( (c - a)^2 + (d - b)^2 ).
Use that on DE, EF and FD in turn to obtain your results.

Answer 3

http://purplemath.com/modules/distform.htm

Answer 4

wELL, IF IT'S PLANES. tHEY Are like triangles. YOU HAVE 2 MAKE THE OPPOSITE OF EACH EQATION. iT WILL MAKE IT RIGHT.