Question

Given that ABC is a right triangle and line CD is perpendicular to line AB, which proportions are true? Select the two correct answers.


1. AC/BC=AD/DB
2. BC/AD=AB/AC
3. BC/DC=AB/BC
4. AC/AD=AB/AC
5. BC/DB=AB/BC

Answer 1

CD divides ABC into two similar triangles, that are also similar to ABC itself

ABC ~ CBD ~ ACD