Question

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​

Answer 1

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 2

Answer:

a)

length=3cm

breadth=4cm

area of rectangle=l×b

so......3×4=12cmsq.

remaining parts are same...