Answer:b
Step-by-step explanation:
Area=50
Area= length x length
50=(length)^2
Taking the square root of both sides we get
length =√(50)
We can get the length of diagonal by Pythagoras rule
Length of diagonal=√((√50)^2+(√50)^2)
Length of diagonal=√(50+50)
Length of diagonal=√100
Length of diagonal=10
