the vertices of a triangle are labeled clockwise A=(-6,3) B=(3,-5) C=(-1,5) , verify that is a right triangle , and find out the area , please help me, thanks.

Question

cwrw238 · Answer

do you know how to find the lengths of lines joining  the points
eg length of AB

anonymous · Answer

ya but my answer for d(A,B) is sqrt of 145, d(B,C) is sqrt of 116 and d(A,C) is sqrt of 53 , so i guess it is not a right triangle but my answer for area got decimal..

cwrw238 · Answer

you are correct - its not a right angled triangle

anonymous · Answer

but how to claculate the area? just leave the answer with decimal ?

espex · Answer

No, you would use your formula of $\frac{1}{2}b*h$ Since you already used the distance formula to determine part of the base, create a right triangle to determine the height.