A2/A = D/B
A2 x B = A x D
B = (Ax D )/A2
Please view attached image.
I would like the forumla for calculating the length of B.
What is known is the length of A (the entire length of that side), A2, D, D2 the angle of r and r2 (90 degrees).
What is the formula for calculating the length of B?
Thanks in advance!