Question

Co-geometry question #1

Answer 1

Sorry, my brain is not functioning well at the moment. Here's an extremely easy question

Answer 2

AB = 4/3 and AC =1 and the coordinates of B and C are given

Answer 3

seems like you can get x and y solving the distance equations
http://www.wolframalpha.com/input/?i=solve+%28x%2B5%2F3%29%5E2+%2B+y%5E2+%3D+%284%2F3%29%5E2%3B+x%5E2%2By%5E2+%3D+1
slope will be quite easy.

Answer 4

Yup, this is one of the methods, but there is another way to do it, and my question is from there. It's using tan

Answer 5

must be some other special elegant method.

Answer 6

Indeed, a very cute solution :)

Answer 7

slope = tan (angle ABC) = 1/ (4/3) = 3/4

Answer 8

Now problem is how do you find that angle??

Answer 9

I understand how it comes. But not sure when does it work. When should I use tangent ratio?

Answer 10

the problem is I don't know when to use tan ratio to find slope and when I can't

Answer 11

Oo ... did i hear something like 3/4 is the answer??

Answer 12

No, but you saw :P

Answer 13

Lol ... I hadn't realized it yet. I'm quite thick headed, I never listen to anyone.

I think you can take tan ratio as slope when your base is parallel to x-axis.

Answer 14

what do you mean by 'base' ?

Answer 15

If \(\theta\) is the reference angle, then b is base, if this b is parallel to x-axis then we can take tan theta as slope.