length_? breadth 30 cm area 480 cm 2 perimeter_?
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Answer:
Perimeter=2(l+b)
480=2(l+30)
480=2l+60
480-60=2l
420=2l
l=420/2
=210
Length=210cm
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Answered by
2
Answer:
Area of rect. = length × breadth
480 = length × 30
480/30 = length
length = 16 cm
perimeter = 2(length + breadth)
= 2 ( 16 + 30 )
= 2 × 46
= 92cm Ans
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