Let original length = L and original breadth = B.<br>Original area = L × B.<br><br>&bull; New length = L × 1.10 = 1.1L<br>&bull; New breadth = B × 0.90 = 0.9B<br>&bull; New area = 1.1L × 0.9B = 0.99 × (L × B)<br>&bull; New area = 99% of original area<br><br>Final Answer: 99