Question

the longer side of a rectangle is 6 less than three times the other side. the perimeter of the rectangle is 28cm. determine the lenght and the width of the rectangle

Answer 1

Step-by-step explanation:

let the lenght 3x-6

let the width- x

perimeter=2(3x-6+x)=28

6x-12+2x=28

8x=40

x=5

length=3(5)-6=15-6

length=9

widht=5

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Answer 2

Let the shorter side be x,

Longer side=3x-6

Perimeter =2(l+b)

28 cm =2(x+3x-6)

28cm =2(4x-6)

4x-6=28/2

4x-6=14

4x=14+6

4x=20

x=20/4

x=5

Length =x=5cm

Bredth=3x-6

=3*5-6

=15-6

=9cm

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