Question

For parallelogram ABCD, A(0, 0), B(a, b), and D(c, 0) are three of its vertices. Find the coordinates of C in terms of a, b, c.

https://media.glynlyon.com/a_matgeo_2011/8/groupi84.gif

Answer 1

the top side is b above the vertical, so the y-value will be b. The x value will be a more than c, so:
(a+c,b)

Answer 2

Thanks again, Taylor!

Answer 3

yw