Question

Show that the following points form a equilateral triangle A(a, 0), B(−a, 0), C(0, a√3 )

Answer 1

In eqilateral triangle all 3 sides will be equal

distance between 2 points will be √[(x2-x1)²+(y2-y1)²]

on using this formula calculate distance between AB ,AC,CB

ALL the distances r euqal then these will be sides of equilateral triangle.

On solving it u will get taht all sides r equal.HEnce these r sides of eqilateral triangle