SOLUTION: Im stuck on a proof. there is 2 spots 1 and 2 no 0 for given. Porblem: Prove that a triangle with vertices A (11,2) B(23,1), and C (2,10) is isosceles.
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Question 433800: Im stuck on a proof. there is 2 spots 1 and 2 no 0 for given. Porblem: Prove that a triangle with vertices A (11,2) B(23,1), and C (2,10) is isosceles.
Answer by shree840(260) (Show Source): You can put this solution on YOUR website!
Isosceles means AB=AC
A(11,2) B(23,1) C (2,10)
AB= sq root((23-11)^2 + (1-2)^2
= sq root (145))'=
Ac = sq root((11-2)^2+(2-10)^2
= sq root ((81+64)
= sq root (145)
AB=AC so it is an isosceles triangle ANS
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