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CBSE Class 7 Answered

Find the breadth and area of the given perimeter of rectangle. perimeter=8m Length=80cm
Asked by sahu_poonam1980 | 16 Jan, 2019, 07:43: PM
answered-by-expert Expert Answer

1m=100cm, 

Hence, 1cm=0.01m

80cm=0.8m

Perimeter=2(l+b)

8=2(0.8+b)

8 over 2=0.8+b

4=0.8+b

b=4 - 0.8

b=3.2m

Area=l×b

Area=0.8×3.2

Area=2.56 m2

Answered by Arun | 16 Jan, 2019, 10:22: PM
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