Answer:
4.24
Explanation:
you should use the pythagorean theorem to solve this!
a^2 + b ^2 = c^2
3^2 + 3^2 = c^2 (i got 3 because it goes down three, and over three)
9 + 9 = c^2
18 = c^2
the square root of 18 is 4.24
therefore, the distance between C and D is 4.24.
hope this helps! :)