Posted by Kylie on .
Write a radical for exact length of the diagonal of the 30 by 30 dance floor. simplify the radical.
Im not sure how to do this.

Algebra 
bobpursley,
What is Pythagorean theorem?

Algebra 
Jai,
since it's 30 by 30, the shape is a square.
recall that the diagonal of a square is given by:
diagonal = sqrt(s)
where s = length of a side
thus, the diagonal is
sqrt(30)
hope this helps~ :)