Answer: 8
Step-by-step explanation:
Given : Kai is making a chessboard using pieces of wood that measure 1 square inch.
When he finishes, the chessboard will have an area of 64 square inches.
The number of pieces of wood he should use is given by :-
[tex]\dfrac{\text{Area of chessboard}}{\text{Area of one piece of wood}}\\\\=\dfrac{64}{1}=64[/tex]
Hence, the number of pieces of wood he should use along each side =[tex]\sqrt{64}=8[/tex]
Hence, he should put 8 pieces of wood along each side.
