Question

length 140cm perimeter of the rectangle = 400cm breath=?​

Answer 1

Your Question :

The perimeter of the rectangle is 400 cm and length is 140 cm. Find its breadth.

Given :

• Perimeter of a rectangle → 400 cm
• Length → 140 cm.

To Find :

• Breadth of the rectangle.

We know :

Perimeter of the rectangle = 2 × (Length + Breadth)

⟹ 400 cm = 2 × (140 cm + breadth)

⟹ 400 cm = 280 cm + 2b

⟹ (400 - 280)cm = 2b

⟹ 120 cm = 2b

⟹ b = 120/2 cm

⟹ b = 60 cm

Final Answer :

∴ The breadth of the rectangle is 60 cm.

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Answer 2

Answer:

Step-by-step explanation:

Perimeter of rectangle =2(l+b)

l=length

b=breadth

400=2(140+b)

200=140+b

200-140=b

b=60