HELP PLEASE ASAP What is the length of the diagonal of the square shown below?

Answer:
C) diagonal = 5√2
Step-by-step explanation:
diagonal² = 5² + 5²
diagonal² = 50
diagonal = √50
diagonal = √25x2
diagonal = 5√2
Answer:
C) diagonal = 5√2
Step-by-step explanation:
diagonal² = 5² + 5²
diagonal² = 50
diagonal = √50
diagonal = √25x2
diagonal = 5√2