Triangle Q T S is shown. Angle A T S is a right angle. An altitude is drawn from point T to point R on side Q S to form a right angle. The length of T S is 3 x, the length of Q R is 6, and the length of R S is 12.
What is the length of side TS?

2 StartRoot 6 EndRoot units
6 StartRoot 6 EndRoot units
24 units
8 units

The answer is 6 root 6

Explanation:

On edge

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.