Question

Need explanation and answer

Answer 1

1=22e 3663 30-4949-29238342

Answer 2

`x = √(12) = 3.464`

Explanation:

`AC=AD+DC=13\\\text{Because ABC is a right triangle then}\\AB^2=AD.AC\\\Rightarrow AB^2=1 * 13=13\\\Rightarrow AB = √(13)\\\text{In the right triangle ABD, since Pythagoras we also have}\\AB^2=AD^2+BD^2\\\Rightarrow BD^2=AB^2-AD^2\\\Rightarrow x^2= 13 - 1=12\\\Rightarrow x = √(12) = 3.464.`