the tiles in a store are being compared. the diagonal of one tile is 9√2 centimeters, and the other tile is 8√2 centimeters. what is the difference in the length of the diagonals?

The difference in the length of the diagonals is:

9√2 - 8√2 = √2.

To find the difference in the length of the diagonals, we subtract the length of one diagonal from the other.

Given:
Length of one diagonal = 9√2 cm
Length of the other diagonal = 8√2 cm

Difference in the length of the diagonals = (Length of one diagonal) - (Length of the other diagonal)

= (9√2 cm) - (8√2 cm)

To subtract the diagonals, we can subtract the coefficients of √2.

= 9√2 - 8√2

Since the square root of 2 is the same in both terms, we can directly subtract the coefficients.

= (9 - 8)√2

= 1√2

Therefore, the difference in the length of the diagonals is 1√2 centimeters.

To find the difference in the length of the diagonals of the two tiles, we subtract the length of one diagonal from the length of the other diagonal.

Given:
Length of the first diagonal = 9√2 cm
Length of the second diagonal = 8√2 cm

Difference in diagonal lengths = Length of the second diagonal - Length of the first diagonal

= (8√2 cm) - (9√2 cm)

To subtract these two values, we need to ensure the units and the radical parts are the same.

Since both lengths have the same radical part (√2), we only need to consider the numerical coefficients.

8 - 9 = -1

Therefore, the difference in the length of the diagonals is -1√2 cm, or simply -√2 cm.

add 3√21 + 7√21