Question

EXERCISE 21D
1. 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 = 2 m 5 cm and breadth = 60 cm
(v) length = 3.5 km and breadth = 2 km​

Answer 1

Step-by-step explanation:

area of rectangle is l ×b

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Answer 2

Answer:

(I) area of a rectangle =lb=46×25=1150 cm

(ii) area of a rectangle =lb=9×6=54 m

(iii) area of a rectangle =lb=14.5×6.8=98.6

(iv) 2m=200 cm +5 cm = 205 cm

(iv) area of a rectangle =lb=205cm×60=12300 cm

(v) area of a rectangle =lb=3.5×2=7 km