Well its
900+0+0
basically
like if it was
9,234
then it would be
9000+200+30+4
It's already in the simplest form.
The correct answer would be C :^)
Bu using Pythagoras theorem
(x^2)+(21)^2=(75)^2
Therefore. 5625-441=(x)^2
X^2=5184
Therefore x=72
Third side length=72 units
