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ICSE Class 9 Answered

The perimeter of a rectangle is 40.5 m and its breadth is 6 m. Find its length and area.
Asked by Topperlearning User | 29 Aug, 2017, 12:51: PM
answered-by-expert Expert Answer

It is given that

S=40.5 m

  l=6 m

begin mathsize 12px style straight s equals 2 open parentheses l plus straight b close parentheses
40.5 equals 2 open parentheses 6 plus straight b close parentheses
6 plus straight b equals 20.25
straight b equals 14.25 space straight m end style

Now Area of the rectangle is given by

begin mathsize 12px style straight A equals l cross times straight b
equals 14.25 cross times 6
equals 85.5 space sq space m end style


Answered by | 29 Aug, 2017, 02:51: PM
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