20. The lengths of two sides of a triangle are 8 and 12. What can be said about the length of the third side?(1 point)
It must be greater than or equal to 4 and less than 20.
It must be greater than or equal to 4 and at most 20.
It must be greater than 4 and less than 20.
It must be greater than 4 and at most 20.