Ok, use Distance formula to find out if pq and qr are congruent. (PQ and QR being line segments.)
P = (4, -4)
Q = (1, -6)
R = (-1, -3)
I got PQ = sqrt 5 and QR = sqrt 1 or 1.
I have the distance formula, but I can't figure out why it's not working. I graphed these, and it's clearly not the correct answers that I have. Help with this and I promise to ask my Geometry teacher. I think I copied the formula wrong.
2006-08-23 16:17:24 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
yes they are congruent, each of their lengths is 13^0.5
2006-08-23 16:18:34 · answer #1 · answered by Anonymous · 2⤊ 1⤋
PQ = sqrt (3^2+2^2) = sqrt 13
QR= sqrt (2^2 + 3^2) = sqrt 13
Your formula should be:
dist = sqrt [(x1-x2)^2 + ( y1-y2)^2]
2006-08-23 23:22:49 · answer #2 · answered by jenh42002 7 · 0⤊ 1⤋
distance=sqrt((x2-x1)^2+(y2-y1)^2)
so they are congruent...
because,
PQ=sqrt((1-4)^2+(-6+4)^2)=sqrt(13)
QR=sqrt((1+1)^2+(-3+6)^2)=sqrt(13)
2006-08-23 23:54:06 · answer #3 · answered by bullet 2 · 0⤊ 0⤋
Well, I was going to answer it, but you've already got the right one, so...Thanks for the points.
2006-08-23 23:29:02 · answer #4 · answered by midge 4 · 0⤊ 0⤋
think a liitle about it. u can do it
if u can't, then post it in yahoo answers
2006-08-23 23:19:48 · answer #5 · answered by ___ 4 · 0⤊ 0⤋