Question

How do you find a missing vertex of a shape on a coordinate plane?

Please explain it in a simple form.
I am pretty lost.

Answer 1

Take all given points and shove em across the X axis and then the Y axis

Answer 2

Explanation:

Step 1 : Take the given points as (x1, y1) (x2, y2) and (x3, y3).

Step 2 : Use the formula for area of triangle and apply the above values.

Step 3 : Equate them to the given area, and solve for unknown.