Question

The perimeter of a rectangle is 100 cm and its length is 30 cm. Find its breadth.

Answer 1

Answer:

p =100cm

2(l+b) =100

30+b=100÷2

b=50-30

b=20 cm

Answer 2

Answer:

2(l+b)= perimeter of rectangle

therefore,

2(30+b)=100

30+b=100/2

b=50-30

b=20cm

Step-by-step explanation:

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