Find the areas of the rectangles whose two adjacent sides are:

(i) 14 cm and 23 cm

(ii) 3 km and 4 km

(iii) 2 m and 90 cm

Find the areas of the squares whose sides are:

(i) 8 cm

(ii) 14 m

(iii) 2 m 50 cm

What is the cost of tiling a rectangular field 50 m long and 30 m wide at the rate of ₹ 20 per square metre?

A floor is 5 m long and 4 m wide. A square carpet of side 3 m is laid on the floor. Find the area of the floor that is not carpeted.