Diego has 81 square inch tiles. He wants to use them to make a square mosaic. How long can each side of the mosaic be

s= 9

Step-by-step explanation:

Diego has 81 square inch tiles. He wants to use to make a square mosaic.

Area of the tile = 81 square inches

We know , area of the square = s^2

where 's' is the side of the square

Area is s²

Plug in 81 for area and solve for 's'

Take square root on both sides

s= 9

i hope this helps

have a great day :))

C. Use the distance formula to calculate the length of all 3 sides, and check whether all sides are congruent.