In right triangle ABC, we have AB = 10, BC = 20, and angle ABC = 90 degrees. If M is on AC such that BM is an altitude of triangle ABC, then what is cos angle ABM?
Double pooooosttttt:
https://web2.0calc.com/questions/in-right-triangle-abc-we-have-ab-10-bc-24-and-angle
Too Lazy to clik? Its \(\frac 1{\sqrt2}\)