Question

Abc is an isoscelec triangle if the coordinates of the base are b(1,3) and c(-2,7),the coordinates of vertex a can be

Answer 1

b(1,3). C(-2,7)
b(x1, y1). C(x2,y2)


formula:-

x2-x1
y2-y2=. -2-1. =-3
4
7-3.


Ans. -3÷4