Josie wants to tile one square section of her countertop. She bought 850 tiles with side lengths of 1 inch.

Question

A. What is the largest side length of that countertop she can tile? Round to the nearest whole inch.
B. How many tiles will she have left over?

Answer 1

√850 = 29.15

so, she can tile a 29x29 countertop

subtract 29x29 from 850 to get the remainder.

Answer 2

Thanks for the info!