I am a non-math person with a math question. Suppose you have an Pythagorean formula, but there is a known relationship in length between A and B. So:

Given that A = A and B = (0.75A) . . . your formula is:

A(squared) + 0.75A(squared) = 361 or 19(squared)

Can you solve this, since you now only have one unknown, A? and if so, could you show me the steps to get there? Thanks, D