Returning values from methods

Question

def calc (a,b)
return a*a, b*b, a*b
end
puts calc(3,2).length
why is the output 3?

Answer 1

because the method Returns an Array with the Square of a, the Square of b and the product of a and b ---> 3 different results

Answer 2

because if return has multiple values it returns them in an array

Answer 3

Thank you!