Find the length of the triangle ABC (0,9),(-6,-5)and(8,1)

Asked by  | 28th May, 2009, 04:15: PM

Expert Answer:

Let us say we want to find the perimeter of triangle ABC. Clearly first we need to find out the sides of the triangle which can be found as:

AB=((0+6)2+(9+5)2)0.5 =(232)0.5

BC=((8+6)2+(-1-5)2)0.5 =(232)0.5

CA=((8-0)2+(1-9)2)0.5 =(128)0.5

Now perimeter of triangle =AB+BC+CA =2((232)0.5 +(128)0.5

 

Answered by  | 29th May, 2009, 10:05: PM

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