Answer:
0
Step-by-step explanation:
The light intensity would be cut by 100% if the second filter is rotated 90 degrees.
Answer: C) 50%
If the polarizes are parallel, then it will be 0%. But if they're both perpendicular than it will be 50%. If they are neither parallel nor perpendicular, than it will be less than 50% and greater than 0%
12:18
12 to 18
12/18 = 2/3
Perimeter: 2l+2w
Area: lw
Let l=length, and w=width
5.7285536159324