Question

the perimeter of a rectangle is 38 if its length is 12 m find its area

Answer 1

Here,

Length of the rectangle=12m

Perimeter of the rectangle =38m

Perimeter of a rectangle =2(l+b)

38=2(12+b)

19-12=b

b=7m

Area of the rectangle=lb

=12×7=84m^2

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Answer 2

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Perimeter = 2(l + b)

38 = 2(12 + b)

38 = 24 + 2b

38 - 24 = 2b

14 = 2b

14/2 = b

b = 7m.

Area = l × b

= 12 × 7

= 84 m2 is the answer....

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