Answer :
Answer: 781cm
You multiply 15 by 11 to get 165. Then you multiply 165 by 4 to get 660.
Then you are going to multiply 11 by 11 to get 121.
You then add 121 and 660.
Then you get 781cm
You multiply 15 by 11 to get 165. Then you multiply 165 by 4 to get 660.
Then you are going to multiply 11 by 11 to get 121.
You then add 121 and 660.
Then you get 781cm