Neeed hellllp I know I did it wrong but can you please check if I'm correct cause I know it's not right PLEAAAASE FOR BRAINLEST ANSWER and thanks:))

Neeed hellllp I know I did it wrong but can you please check if Im correct cause I know its not right PLEAAAASE FOR BRAINLEST ANSWER and thanks class=

Respuesta :

It looks right to me..
It is 40 centimeters because 4 x 10 = 40.