Answer:
hii there
The correct answer is ( D )
hope it helps you
have a nice day
Step-by-step explanation:

Thus, mean and median are same.
Equation = a² + b² = c²
a = 80
b = 39
c = Diagonal
a² + b² = c²
80² + 39² = c²
6400 + 1521 = c²
c² = 7921
c = √7921
c = 89
Answer = 89 units
3 in 350 is 300 the 3 in 403 is 3