Question

Find the area of the triangle whose vertices are (1,2), (2,3)and (1,3) ​

Answer 1

Given:

Vertices =  (1,2), (2,3)and (1,3)

To Prove:

Area of the triangle .

Solution:

 

Vertices = (1,2), (2,3)and (1,3)

$x_1=1 \\x_2=2\\x_3=3\\y_1=1\\y_2=2\\y_3=3$

Answer:- area is 1