Question

Prove that the diagonals of a rectangle bisect each other.
The midpoint of AC is

Answer 1

Answer:

(a,b)

Step-by-step explanation:

we know that midpoint of each diagonal is (a,b),

is easy to check that

AC has equation $bx-ay=0$

and BD has equation $bx+ay=2ab$

which have intersection (common) point on (a,b).