Question

the length of a rectangle is 2 times its breadth if the perimeter is 60 cm what is the length and breadth​

Answer 1

Answer:

Let the length and breadth be x and 2x

Perimeter = 60 cm

Also, Perimeter = 2(l+b)

60 = 2 ( x + 2x )

60 = 2 (3x)

60 = 6x

x = 60 / 6

x = 10

Therefore, Length = 2x = 2 (10) = 20cm

Breadth = x = 10 cm

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Answer 2

Answer:

length=20cm, breadth=10cm

Step-by-step explanation:

given that l (length)/2 = b(breadth)

or l=2b

now perimeter is 60cm

perimeter of rectangle=2(l+b)

=2(2b+b)

=2(3b)

=6b=60cm

=b=60cm/6=10cm

l=2b=20cm

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