Question
Question: The number of rectangles which can be formed on a chessboard is –...
The number of rectangles which can be formed on a chessboard is –
A
81
B
1296
C
648
D
324
Answer
1296
Explanation
Solution
9 horizontal and 9 vertical lines on a chess board, 9C2 × 9C2
= 36 × 36 = 1296