Answer:
5.66 units
Step-by-step explanation:
A's per our discussion, x is a leg of right triangle.
Therefore, by Pythagoras theorem:
[tex]x = \sqrt{ {9}^{2} - {7}^{2} } \\ = \sqrt{81 - 49} \\ = \sqrt{32} [/tex]
[tex]x = \sqrt{ {16}^{2} - {12}^{2} } \\ = \sqrt{256 - 144} \\ = \sqrt{112} [/tex]
