If you know the volume of the cube how do you find its edge length

length x width x height = volume

if you already have the volume and its a perfect cube, divide the volume by 3 because length width and height equal the same number

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .