Question

find the area of the triangle formed by the points (1,_2) (3,_4) (_2,0)​

Answer 1

Step-by-step explanation:

area=1/2(1(4-(-4))+3(-4-0)+(-2)(-2-(-4))

=1/2((4+4)+3(-4)-2(-2))

=1/2(8-12+4)

=1/2(0)

=0

the points are collinear ,it is not a triangle

area of triangle =

$1 \div 2| x1(y2 - y3) + x2(y3 - y3) + x3(y1 - y2)|$