- #1

- 365

- 0

## Main Question or Discussion Point

Hello!

I have one question.

I have given 5 coordinates:

0 0

2 0

1 1

1 -1

3 -1

The question is how many right angles can I create with these coordinates?

I know one way out, but it is pretty complicated.

C

And try every single combination (finding the sides of the triangles, there are 10 of them). Is there any simpler way?

Thanks in advance.

Regards.

I have one question.

I have given 5 coordinates:

0 0

2 0

1 1

1 -1

3 -1

The question is how many right angles can I create with these coordinates?

I know one way out, but it is pretty complicated.

C

_{5}^{2}=5!/(2!*3!)=5*4*3!/(2!*3!)=10And try every single combination (finding the sides of the triangles, there are 10 of them). Is there any simpler way?

Thanks in advance.

Regards.