The model is made out of a stack of plywood sheets. each sheet is 0.6 inch thick. how many sheets of plywood tall is the model

The number of sheets stacked to make
the total height of the model is

     (the total height of the model, in inches) / (0.6) .

We see this same problem every few months here on .
Nobody ever tells us how many inches tall the model is.

40 & 50 in the right corner are the complementary angles as when placed in a sum (added together) they make 90°