Hello, dearlybelovedx3!

In right triangle ABC, BD is the altitude to hypotenuse AC.

(a) Find and

(b) To the nearest tenth, findCode:B * *| * * | * * |6 * * | * * | * A * * * + * * * * * * * * * C x D 20-x : - - - - 20 - - - - - :

We have three similar right triangles: .

Let , then

Then: .

. . and we have: .

(a) Therefore: .

(b) In right triangle ADB, we have: .