A rectangular prism has a length of 8 in., a width of 4 in., and a height of 214 in. The prism is filled with cubes that have edge lengths of 14 in. How many cubes are needed to fill the rectangular prism?

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

i belive those are the ones that are under 90 degreese.