Question

The length and breadth of a rectangle are (3x+4)cm and (4x-13)cm respectively if the perimeter of the rectangle is 94 cm, then its area is​

Answer 1

Answer:

532cm2

Step-by-step explanation:

perimeter =2(l+b)

94=2(3x+4+4x-13)

47=7x-9

56=7x

x=8cm

length =24+4=28 cm

breadth =32-13=19cm

area =28×19

532cm2

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Answer 2

Answer:

532 cm^2

Step-by-step explanation:

Perimeter=2*(Length+Breadth)

94=2(3x+4+4x-13)

94/2=7x-9

47=7x-9

47+9=7x

56=7x

x=56/7=8

Now,

since x=8

Length=3x+4

           =3*8+4

           =28 cm

Breadth=4x-13

             =4*8-13

             =19 cm

Area=Length*Breadth

       =28 cm*19 cm

       =532 cm^2