Question

Find the areas of the rectangles whose sides are :
fa) 3 cm and 4 cm (b) 12 m and 21 m (C) 2 km and 3 km
(d) 2 m and 70 cm​

Answer 1

Answer:

a) Area = 12 cm²

b) Area = 252 m²

c) Area = 6 km²

d) 14000 cm² or 1.4 m²

Hope this helps you.

Answer 2

length of a rectangle = l × b

(a) l=3cm

b = 4cm

3×4 = 12cm²

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(b) l=12m

b = 21m

12 × 21= 252 m²

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(c) l=2km

b = 3km

2×3 = 6 km²

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(d) l=2m

b= 70cm = 7/10m

2× 7/10 = 7/5 = 1.4m

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i hope it helps you

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keep smiling always