4. 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.
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Answer:
(i) 14cm and 23cm
Area of the rectangle = Length × Breadth
=14cm23cm
=322sq.cm
(ii) 3km and4km
Area of the rectangle = Length × Breadth
=3km4km
=12sq.km
(iii)2m and 90cm
90cm=0.9m
Area of the rectangle =Iength × breadth
=2m × 0.9m
=1.8sq.m
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