Question

Show that the triangle with vertices a(0 2) b(-3 -1) and c(-4 3) is isosceles. Thanks!

Answer 1

use distance formula
if you can 2 sides that have the same length then you have shown it is isosceles

Answer 2

find the distance between (0,2) and (-3,-1)
find the distance between (-3,-1) and (-4,3)
find the distance between (0,2) and (-4,3)
see if you have 2 of the 3 distances are the same

Answer 3

if I do, does that prove that it is an isosceles triangle?

Answer 4

yes again if you can show 2 sides have the same length then you have shown it is isosceles .

Answer 5

ok awesome thanks!

Answer 6

np :)

Answer 7

@theopenstudyowl did you get through this?

Answer 8

are you stuck anywhere?

Answer 9

yah, sqrt17 on two of the sides proves that it is an isosceles, thanks for the help too btw!

Answer 10

sounds great
I got sqrt(17) for the last two segments I mentioned