Find the length of the rectangle. Width=3cm perimeter=20cm length=?
puvi1:
b=3cm, p=20,l=? p=2(l+b) so 20=2(l+3)and l=7
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2(l+b) = 20
so, l+b = 10
so, l = 7
Hence Length is 7 cm
so, l+b = 10
so, l = 7
Hence Length is 7 cm
Answered by
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Given, Perimeter=20cm
Width (breadth)=3cm
length=?
perimeter of rectangle = 2 (l+b)
20cm=2 (l+3cm)
20cm/2= l+3cm
10cm=l+3cm
therefore, length =10-3cm
7cm...
Width (breadth)=3cm
length=?
perimeter of rectangle = 2 (l+b)
20cm=2 (l+3cm)
20cm/2= l+3cm
10cm=l+3cm
therefore, length =10-3cm
7cm...
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