Question

If length =8cm,breadth=?,perimeter =42,area=? Then find its breadth and it's area

Answer 1

Answer: HELLO MATE....

Here is your ans.......

Perimeter 0f rectangle = 2×(l+b)

         42cm                     = 2×(8+b)

          42cm ÷2               =  8+b

          21cm                     = 8+b

          21-8                       = b

         13 cm     = breadth

Area of rectangle  = l×b

                              = 8×13

                              = 104 cm

Hope this ans helps you.

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