1. Find the areas of the rectangles whose sides are :
(a) 3cm and 4 cm (b) 12 m and 21 m (c) 2 km and 3 km
(d) 2 m and 70 cm
(a) 3cm and 4 cm (b) 12 m and 21 m (c) 2 km and 3 km
(d) 2 m and 70 cm
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Answer:
Step-by-step explanation:
Area of rectangle = l x b
a.) Area = 3 x 4 = 12 cm²
b.) Area = 12 x 21 = 252 m²
c.) Area = 2 x 3 = 6 km²
d.) Area = 200 x 70 = 14000 cm²............. 2 m =200 cm
Answer:
a)
length=3cm
breadth=4cm
area of rectangle=l×b
so......3×4=12cmsq.
remaining parts are same...