Question

The perimeter of a rectangle is 142 cm length if breadth is 30cm find

Answer 1

Answer:

is answer was 2(l+30)=142 second methode 2×30l =142 30l =142 by 2 forth methode 30l=71 fifth methode L= 71 by 30 finnaly answer was 2.36

Answer 2

Answer:

Let the lenght be L cm.

For rectangle,

Perimeter(P) =142cm

Breadth(B) = 30cm

Therefore,By the problem,

=> P = 2(L+B)

=> 142 = 2(L+30)

=> 142 = 2L + 60

=> 142-60 = 2L

=> 82 = 2L

=> L = 82/2

=> L = 41

Ans) The lenght of the rectangle is 41 cm.

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