Let the vertices be A(0,0); B(5,5) and C(-5,5).Remember that in a right triangle Pythagoras theorem will be followed.Also for an isosceles triangle two sides must be of the same length.By distance formula: The triangle is clearly isosceles as AB = AC.Also,AB^{2} + AC^{2} = 50 + 50 = 100 = 10^{2} = BC^{2} Posted by Tushar Kohli(MeritNation Expert)on 1/1/13 This conversation is already closed by Expert

Let the vertices be A(0,0); B(5,5) and C(-5,5).Remember that in a right triangle Pythagoras theorem will be followed.Also for an isosceles triangle two sides must be of the same length.By distance formula: The triangle is clearly isosceles as AB = AC.Also,AB^{2} + AC^{2} = 50 + 50 = 100 = 10^{2} = BC^{2} Posted by Tushar Kohli(MeritNation Expert)on 1/1/13 This conversation is already closed by Expert

Let the vertices be A(0,0); B(5,5) and C(-5,5).Remember that in a right triangle Pythagoras theorem will be followed.Also for an isosceles triangle two sides must be of the same length.By distance formula: The triangle is clearly isosceles as AB = AC.Also,AB^{2} + AC^{2} = 50 + 50 = 100 = 10^{2} = BC^{2} Posted by Tushar Kohli(MeritNation Expert)on 1/1/13 This conversation is already closed by Expert