Question

@waterineyes Determine if triangle ABC with coordinates A (−1, 1), B (1, −1), and C (3, 3) is an isosceles triangle. Use evidence to support your claim. If it is not an isosceles triangle, what changes can be made to make it isosceles? Be specific.

I just did this and i got that its NOT isosceles.. correct ?

Answer 1

i got
sqrt(8)
sqrt(20)
sqrt(-20)

Answer 2

correct.

Answer 3

i'm picasso btw

Answer 4

Again find the length of AC.. :)

Answer 5

you should not get -ve number in square root, this is just not possible..

Answer 6

A(-1,1) and C(3,3)

\[AC = \sqrt{(3-1)^2 + (3-(-1))^2} = \sqrt{(2)^2 + (3 +1)^2} = \sqrt{4 + 16} = ??\]

Answer 7

Not getting @Gabylovesyou ??

Answer 8

but A is x2 and y2

Answer 9

yeah, solve it further.

Answer 10

your forgot to take sqrt of whole thing.. :)

Answer 11

side CA

sqrt{(-1 - 3)^2 + (1 - 3)^2 }

Answer 12

then how you got sqrt{-20} there? :P

Answer 13

So, two sides are equal or not?

Answer 14

idk.. wait but first is sqrt8 right /

Answer 15

second is?

Answer 16

sqrt 20

Answer 17

and third is

Answer 18

sqrt 20

Answer 19

so two sides are equal no?

Answer 20

yep .. ok thanks

Answer 21

any two sides should be equal, if third side is also equal then it is not isosceles but equilateral triangle in that case, getting?

Answer 22

yes

Answer 23

That is great..!! :)