The points (2.7). (5.3) and (-2, 4) are the vertices of a triangle whi

1.	The points (2.7). (5.3) and (-2, 4) are the vertices of a triangle which is(A) right angled (B) isosceles (C) equilateral (D) isosceles and right angled
Answer» Its Option Das √50= 5√2and√5^2+5^2= 5√2so its a right anglr too answer is option D. but i want to know "how to find it is right angled triangle?"

The points (2.7). (5.3) and (-2, 4) are the vertices of a triangle which is(A) right angled (B) isosceles (C) equilateral (D) isosceles and right angled

Answer»

Its Option Das √50= 5√2and√5^2+5^2= 5√2so its a right anglr too

answer is option D. but i want to know "how to find it is right angled triangle?"