SOLUTION: The area of a square is 81 square centimeters. Find the length of a side. Find the length of the diagonal.
Algebra ->
Pythagorean-theorem
-> SOLUTION: The area of a square is 81 square centimeters. Find the length of a side. Find the length of the diagonal.
Log On
Question 549180: The area of a square is 81 square centimeters. Find the length of a side. Find the length of the diagonal. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! area of square = 81
side = sqrt(81)
side = 9
diagonal^2 = (9)^2+(9)^2
diagonal = sqrt(162)
diagonal = 9sqrt(2)