I don’t get number 5, could someone explain to me the answer?

Answer:
I thinks its 33?
Step-by-step explanation:
It said diagonal, not horizontal. Horizontal is left and right, diagonal is up and down, and since its talking about the screen size it should be 33 inches
Answer:
55
Step-by-step explanation:
I used some graphing software. I changed 33 and 44 to 3 and 4 just for the sake of saving space. So the diagonal measurement is represented by segment BD. So since I divided 33 and 44 by 11 to make it smaller to get 3 and 4, I am going to multiply 5 by 11 to get 55
Thus the REAL diagonal measurement of the TV screen is 55 inches