What is the length of b?

With a 45,45,90 right triangle, the hypotenuse is always the length of one of the other side times the square root of 2, so divide by that and you get 8

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?