Find the distance between the points (13, 20) and (18, 8).

7
11
13

Question

Find the distance between the points (13, 20) and (18, 8).

7
11
13

hartnn · Answer

Distance between points (x1,y1) and (x2,y2) is 
$\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$
does this help ??

anonymous · Answer

Well, I knew the formula I'm just having a hard time. ): I hate math!

hartnn · Answer

well. lets start by taking difference of x-co-ordinates, 
13-18 =... ?

anonymous · Answer

-5.

hartnn · Answer

according to the formula, you need to square it ,
so (-5)^2 =... ?

anonymous · Answer

25.

hartnn · Answer

what about difference in y-co-ordinates ?

anonymous · Answer

Grr, ugh! ): I don't know. Please don't judge me!

hartnn · Answer

its ok....
difference of y-co-ordinates = 20-8 = 12
its square will be 144
so, just solve, $d=\sqrt{144+25}$
and you'll get your distance :)

anonymous · Answer

Just do it on graph paper. Do the normal equation to get the hypotenuse. You can draw a triangle to figure out your other two legs.

anonymous · Answer

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