First break the L into two rectangular prisms and then find the volume for each prism. Then add those two volumes together to get the L.
It represented a vertical line that no matter what y is, x is always 6
I believe it to be six but than again I could be sadly wrong
-- If the 55° angle is one of the two equal angles, then
the third angle is 70° .
-- If the 55° angle is the third angle, then each of the two
equal angles is 62.5° .
-- For either of these cases, there are an infinite number
of possible sets of side-lengths.
The statement in the question does not hold water.