Question

please help me with this question​

Answer 1

Answer:

20

Step-by-step explanation:

You do have some idea of how the question is done. It won't take much to learn the right answer.

braces = square root( length^2 + height^2)

braces = √(  (12)^2 + (16)^2) )

braces = √(144 + 256)

braces = √(400)

braces = 20