They would be considered similar triangles.
I used a little trig, the opposite and adjacent were being used so I used tan... I used it to find h and then plugged it in the a=bh
I think the correct answer from the choices listed above is option C. It is the metal Na that will react with water to produce a metal hydroxide and hydrogen gas. It reacts violently with water forming sodium hydroxide and the hydrogen gas.
Answer:
3x+2y=2x+8
3x-2x+2y=8
3x-2x=8-2y
x=8-2y