Question

ABCD is rectangle. Find the length of each diagonal
AC=c/3
BD=4-c

Answer 1

The diagonals of a rectangle are congruent, so set the expressions equal and solve the equation for c.
Then divide c by 3 to get AC.

Answer 2

The diagonals of a rectangle are always equal, therefore, c/3 is equal to 4-c. Set these equal and solve:
\[c/3=4-c\] Once you solve for c, plug it back into either equation to get the length of the diagonals. If you'd like more help let me know.

Answer 3

multiple both sides by 3?

Answer 4

yes