Question

Find the area of a rectangle whose
(i) length = 46 cm and breadth = 25 cm
(ii) length = 9 m and breadth = 6 m
(iii) length = 14.5 m and breadth = 6.8 m
(iv) length = 12 m 5 cm and breadth = 60 cm
(v) length = 3.5 km and breadth = 2 km

Answer 1

(i) Length = 46 cm
Breadth = 25 cm
Area of the rectangle = (Length $\times$Breadth) sq units
= (46$\times$25) cm² = 1150 cm²

(ii) Length = 9 m
Breadth = 6 m
Area of the rectangle = (Length $\times$Breadth) sq units
= (9$\times$6) m² = 54 m²

(iii) Length = 14.5 m
Breadth = 6.8 m
Area of the rectangle = (Length $\times$Breadth) sq units
= ($\frac{145}{10}\times \frac{68}{10}$) m² = $\frac{9860}{100}$ m² =98.60 m²

(iv) Length = 2 m 5 cm
= (200+5) cm (1 m = 100 cm )
=205cm
Breadth = 60 cm
Area of the rectangle = (Length $\times$Breadth) sq units
= (205$\times$60) cm² = 12300 cm²

(v) Length = 3.5 km
Breadth = 2 km
Area of the rectangle = (Length $\times$Breadth) sq units
= (3.5$\times$2) km² = $(\frac{35}{10}\times 2)$ km² =7 km²