Question

show that the triangle with the vertices (0,0), (6,4), (4,7) is a right triangle

Answer 1

can someone help please

Answer 2

Do you know the distance formula?

Answer 3

it doesn't give one, its just asking for proof

Answer 4

To prove, you need that formula. Make a search and let me know if you have it.

Answer 5

it doesn't, its a coordinate geometry and proof worksheet and that's is one of the questions it gave me. no formula

Answer 6

http://www.purplemath.com/modules/distform.htm
read it , and apply to your point, let say O (0,0), A (6,4) and B(4,7)
I need the distance of OA, OB and AB. Your turn,:) give me the results