Answer:
<em>*I believe I have already solved this problem, is it wrong, or...............* Centimeters of crystal ( in real life ) = 0.5 cm</em>
Step-by-step explanation:
Let us plan out our steps, and solve for each:
<em>1. Given the information, let us create a proportionality as such:</em>
24 = 1 ⇒ x - crystal size in real life
12 x
<em>2. Now let us cross multiply, and solve through simple algebra:</em>
12 = 24 * x,
x = <em>0.5 centimeters of the crystal in real life</em>