Question

Find area of triangleWith vertex (1,2) (3,-4)(5,4)

Answer 1

Answer:

15

Step-by-step explanation:

area of a triangle is: 1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]

substituting the respective values,

=1/2[1(-4-4)+3(4-2)+5(2+6)]

=1/2{30}

=15

Answer 2

Answer:

first find the side measurements by distance formula. then draw a perpendicular and find its height by Pythagoras theorem.

and then apply the formulya 1/2*base*height