Find the perimeter and area of the following shapes

A rectangle has length 40 cm and breadth 20 cm. How many squares with side 10 cm can be formed from it.

Draw a square B whose side is twice of the square A. Calculate the perimeters of the squares A and B.

Find the number of tiles required to fill the are a of following ligures
(i)

(ii)

(iii)

(iv)

Find the area of the given 'L' shaped rectangular figure by dividing it into squares of equal sizes.
Take side: 7cm