Question

Length = 80cm
Perimeter of rectangle =
240cm
Breadth = ?​

Answer 1

Answer:

perimeter = 2( LENGTH +BREADTH)

LET BREATH BE X

240 = 2 (80 + X)

240 ÷ 2 = 80 + X

120 - 80 = X

40 = X

BREATH IS 40 cm

Answer 2

Given:-

• Length of the rectangle is 80cm.
• Perimeter of the rectangle is 240cm.

To Find:-

• Find the breadth of the rectangle?

Concept:-

• Let's go through the concept first. Concept used here is Perimeter of a Rectangle.Substitute the values in the equation and find the breadth.

Formulae Applied:-

• Perimeter of a Rectangle = 2(l + b)

Solution:-

Let the breadth of the rectangle be b

Length of the rectangle = 80cm

Perimeter of the rectangle = 240cm

According to the question we have!

Perimeter of a Rectangle = 2(l + b)

⟹ 2(l + b)

⟹ 2(l + b) = 240

⟹ 2(80 + b) = 240

⟹ 80 + b = 240/2

⟹ 80 + b = 120

⟹ b = 120 - 80

⟹ b = 40

⟹ b = 40cm

Hence,

The breadth of the rectangle is 40cm.

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