1. The length of a rectangular hall is 10 m more than its breadth. The area of the hall is 875 m2. Find its length (in m).   Hint Hint       2. The length of the diagonal of a square is 24 cm. Find its area (in cm2).   Hint       3. The perimeter of a rectangle is 96 m and its breadth is 14 m. Find its area (in m2).   Hint       4. A rectangular carpet has an area of 48 m2 and a perimeter of 28 m. Find the length of its diagonal (in m).   Hint       5. The breadth of a lawn in the shape of a rectangle is ¼th its length. If the perimeter of the plot is 320 m, find its area (in m2).   Hint       6. The area of a square field is 18 hectares. How much distance (in m) does a man have to cover to cross it diagonally? Note that 1 hectare = 10000 m2.   Hint       7. The length of the diagonal of a square is 30√2 cm. Find its perimeter (in cm).   Hint