Answer: 4,763cm
Explanation:
figure out the first rectangle, 70 x 48= 3360
Then find the bottom number with the inner height 38 x 23 = 874
Next, you would move the triangle that is dotted over to the undotted on on the right to get a square giving you 23 x 23 = 529
In the end you add it all 3,360 + 874 + 529 = 4,763