A chessboard is one large square made up of 8 rows of 8 equal sized smaller squares. Krysta has two chessboards. On one board, the small squares are 2 inches by 2 inches. On the other, they are 3 inches by 3 inches. How much longer is the diagonal of the larger board than the diagonal of the smaller board? If necessary, round your answer to the nearest tenth.____ inches
Q. A chessboard is one large square made up of 8 rows of 8 equal sized smaller squares. Krysta has two chessboards. On one board, the small squares are 2 inches by 2 inches. On the other, they are 3 inches by 3 inches. How much longer is the diagonal of the larger board than the diagonal of the smaller board? If necessary, round your answer to the nearest tenth.____ inches
Calculate side length: Calculate the side length of each chessboard. The smaller board has squares of 2 inches, so the side length is 8×2=16 inches. The larger board has squares of 3 inches, so the side length is 8×3=24 inches.
Use Pythagorean theorem: Use the Pythagorean theorem to find the diagonal of each board. For the smaller board, diagonal = 162+162=256+256=512=22.6 inches.
Calculate diagonal: Calculate the diagonal for the larger board. Diagonal = 242+242=576+576=1152=33.9 inches.
Find difference: Find the difference in the diagonals of the two boards. Difference = 33.9 inches - 22.6 inches = 11.3 inches.