Volume of rectangular prism = 1 1/3 x 5/6 x 2/3 = 4/3 x 5/6 x 2/3 = 20/27
Volume of cube = 1/6 x 1/6 x 1/6 = 1/216
Number of cubes that will pack the rectangular prism = 20/27 / 1/216 = 160
It isn't because since 9 is the product of 3×3, you multiply the 6 by 3 as well, which makes 18.
Answer:
A
Step-by-step explanation:

as 0≤θ≤90
so θ/2 is also in 0≤θ≤90
hence sin θ/2 and cos θ/2 are positive.
Fractions equal to 12/24:-
1/2 , 2/4, 3/6
Not equal:-
3/4 7/8, 11/24