Question

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. @ikram002p @gorv

Answer 1

@Mertsj

Answer 2

Use the distance formula to find the lengths of all three sides. If two of them are the same, the triangle is isosceles.

Answer 3

Look at it
http://www.wolframalpha.com/input/?i=+triangle%28+%28-1%2C+1%29%2C++%281%2C+-1%29%2C%283%2C+3%29%29+
There is an easy way to decide wihout using the distance formula

Answer 4

isosceles traingles have two sides equal......you have coordinates of vertecies of traingle ....now find distance between them ....(x1,y1) and (x2,y2) are two point then distance between them......\[distance=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}\]

Answer 5

like this find distance between them ...if any two distance comes out equal then it is isosceles otherwise not @prowrestler

Answer 6

The point C is on the line y=x and AB is on the line y=-x.
Now, it is easy to decide that the triangle is isosceles

Answer 7

You also can use the distance formula, but when you draw it, you can see better how to deal with it

Answer 8

Using the distance formula is not difficult either

Answer 9

thnxs

Answer 10

@gorv i just did this..... it is NOT isosceles correct ?

Answer 11

well mate i didnt solve it ..left it for the asker ...sorry:(