Question

7. The length of a rectangle is twice its breadth. If its perimeter is 60
cm,
find the length and the breadth of the rectangle​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Length = 20 cm      Breadth = 10 cm

Step-by-step explanation:

Let the breath = x

so length = 2x

perimeter of rectangle = 2(l+b)

60 = 2(2x + x )

60 = 2 × 3x

60 = 6x

x = 60/6

x = 10

hence, length is 2x = 20 cm

Breadth = ?

60 = 2(20+x)

60 = 40 + 2x

60 - 40 = 2x

20 = 2x

x = 10

Breadth = 10 cm

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