Answer:
Leaving as a radical form
Why?
Because that's the whole value if you convert it to a decimal you cannot write all the numbers, and in the radical form it has all the numbers
It would be useful when we are working with equations for example the quadratic equation, if you get that x=√5, you would want the exact value. And there are more useful
Mm i think it’s:
3 rows
6 columns
A parallel line has the same slope so it'd still be 2x with any random number so y=2x+5
AD => Cos 20 = 12.6/H => H = 12.6/Cos 20 = 13.4cm
AB => √13.4^2 - 12.6^2 = 4.6 cm
BC = √19.3^2 - 12.6^2 = 14.6 cm
AC = 14.6 + 4.6 = 19.2 cm
