If the length of sides of a rectangle are 5 cm and 3.5 cm. Find the ratio of its perimeter to area.

Adjacent sides of rectangle are 9 cm and 40 cm. Find diagonal.

The length of a rectangle is 15 cm and breadth is 5 cm. Find its area.

The lengths of adjacent sides of a parallelogram are 5 cm and 12 cm. find the perimeter of the parallelogram.

If the adjacent sides of a rectangle are 60 cm and 11 cm, then find the length of its diagonals.

Sides of a triangle are 45 cm, 39 cm and 42 cm, find its area.

Length and breadth of a rectangle are 35 cm and 12 cm respectively. Find length of its diagonal.