CPhill

Here you go........

We can't tell....how far is it from your starting point to your destination???

We can  "square" any number....I suspect you mean...Is 32 a "perfect" square??

No..it's not..it equals 4√2....which is an irrational number......

Hit the "2nd" button....you will see the "atan" key.....it's the same as tan-1.....

120 degrees is a 60 degree reference angle in quadrant 2.....

It will have the same value as the the secant of 60 except that, since x is negative in this quadrant.....the secant will be negative, too....

Can you take it from there??

I don't know if this happens to you, but if my interet connection "drops out,' the calcuator will cease functioning.....check to see that you have a connection.......

No prob....

Nope...its an irrational number.....meaning, "no end"....

Multiply the price by .75....

Let x be one edge ...let 4/3(x) be another edge....let (5/3)x be another edge

So we have, the length of a diagonal =

√[x^2 + [(4/3)x]^2 + [(5/3)x]^2] = 25√2

x√(1 + 16/9 + 25/9) = 25√2

x = (25√2) / √(1 + 16/9 + 25/9) = about 15

And this is the shortest edge (side)....