Question

A(x1, y1) B(x2, y2) slopofAB​

Answer 1

ANSWER

Given area=  

2

1

​  

∣△∣

Heron's formula

Area=  

S(S−a)(S−b)(S−c)

​  

 

2

1

​  

∣△∣=  

S(S−a)(S−b)(S−c)

​  

 

Squaring on both sides

=  

4

∣△∣  

2

 

​  

=S(S−a)(S−b)(S−c)

∣△∣  

2

=4S(S−a)(S−b)(S−c)

Answer 2

Slope of AB = (y2-y1)/(x2-x1)