Show algebraically that the vertices A (13,3) B (13,5) and C (=2.20) form a right angle triangle.

Question

anonymous · Answer

1st off , you need to calculate , [AB] , [AC], [BC]
we don't where the menu corner is  , do you have anyidea what to do next ?

sidmanfu · Answer

is this to help find the slope of the triangle?

sidmanfu · Answer

nope not at all

sidmanfu · Answer

what do you mean by that because I'm already calculating the slope.

anonymous · Answer

we know that , AB² + AC² = BC² if BC is the longest , so A is going to be our square

sidmanfu · Answer

ohhhh so I figuerd out the slope for AB and AC now I need figure out BC

sidmanfu · Answer

AB's slope is $$\frac{ 2 }{ 16 }$$

sidmanfu · Answer

AC's slope is $$\frac{ -23 }{ -15 }$$

anonymous · Answer

how did you find those ?